Second seeded Elise Mertens and Aryna Sabalenka swept past Barbora Krejcikova and Katerina Siniakova to clinch their maiden Australian Open doubles crown on Friday.

The Belgian-Belarusian combination proved too strong for the third-seeded Czech pair, winning 6-2, 6-3 on Rod Laver Arena after sealing the match on their fourth championship point.&nbsp;

"It's been a tough couple of weeks so thank you to everyone involved. Glad to have fans back," said Mertens.

It was their second Grand Slam success as a team after the 2019 US Open and sixth title overall as they both bounced back from fourth-round defeats in singles at Melbourne Park.

They pair made their debut together at the 2019 Australian Open and have since established themselves as one the tour's top teams, along with two-time Grand Slam winners Krejcikova and Siniakova.

Second seeded Elise Mertens and Aryna Sabalenka swept past Barbora Krejcikova and Katerina Siniakova to clinch their maiden Australian Open doubles crown on Friday.

Second seeded Elise Mertens and Aryna Sabalenka swept past Barbora Krejcikova and Katerina Siniakova to clinch their maiden Australian Open doubles crown on Friday. The Belgian-Belarusian combination proved too strong for the third-seeded Czech pair, winning 6-2, 6-3 on Rod Laver Arena after sealing the match on their fourth championship point. "It's been a tough couple of weeks so thank you to everyone involved. Glad to have fans back," said Mertens. It was their second Grand Slam success as a team after the 2019 US Open and sixth title overall as they both bounced back from fourth-round defeats in singles at Melbourne Park. They pair made their debut together at the 2019 Australian Open and have since established themselves as one the tour's top teams, along with two-time Grand Slam winners Krejcikova and Siniakova.

Mertens-Sabalenka win Australian Open women's doubles title

Russian qualifier Aslan Karatsev said he now felt he could play anyone after his sensational Australian Open run was finally halted by top-ranked Novak Djokovic in the semi-finals on Thursday.

After knocking out three seeds on his Grand Slam debut, it took eight-time champion Djokovic to stop Karatsev and prevent him from creating more history by reaching the final.

The 27-year-old, who had never before qualified for a Grand Slam, will soar from 114 to 42 in the rankings and collects Au$850,000 ($658,000) in prize money, more than doubling his career earnings.

"That I can play with everyone," he said, when asked what he had learned from the Melbourne tournament.

"To be there and to compete with everyone. I think it'll help me a lot during my career... It gives me more experience, more confidence."

Thursday's defeat ended a tennis fairy-tale, after Karatsev became the first man in the Open era to reach a Grand Slam semi on debut.

He was also the lowest-ranked player to reach a major semi-final since Goran Ivanisevic, then the world number 125, at Wimbledon in 2001.

His charmed campaign included wins over eighth seed Diego Schwartzmann, 20th seed Felix Auger-Aliassime and injury-hit 18th seed Grigor Dimitrov.&nbsp;

Djokovic, however, was a different matter.

"There is a huge level, the difference is really big," said the Vladikavkaz native.

"He doesn't give you free points. On my serve it's like every point you have to take, you have to play the rally.

"On my service games there's always rallies, rallies. He served well all the match. Yeah, you're under pressure."

Russian qualifier Aslan Karatsev said he now felt he could play anyone after his sensational Australian Open run was finally halted by top-ranked Novak Djokovic in the semi-finals on Thursday.

Russian qualifier Aslan Karatsev said he now felt he could play anyone after his sensational Australian Open run was finally halted by top-ranked Novak Djokovic in the semi-finals on Thursday. After knocking out three seeds on his Grand Slam debut, it took eight-time champion Djokovic to stop Karatsev and prevent him from creating more history by reaching the final. The 27-year-old, who had never before qualified for a Grand Slam, will soar from 114 to 42 in the rankings and collects Au$850,000 ($658,000) in prize money, more than doubling his career earnings. "That I can play with everyone," he said, when asked what he had learned from the Melbourne tournament. "To be there and to compete with everyone. I think it'll help me a lot during my career... It gives me more experience, more confidence." Thursday's defeat ended a tennis fairy-tale, after Karatsev became the first man in the Open era to reach a Grand Slam semi on debut. He was also the lowest-ranked player to reach a major semi-final since Goran Ivanisevic, then the world number 125, at Wimbledon in 2001. His charmed campaign included wins over eighth seed Diego Schwartzmann, 20th seed Felix Auger-Aliassime and injury-hit 18th seed Grigor Dimitrov. Djokovic, however, was a different matter. "There is a huge level, the difference is really big," said the Vladikavkaz native. "He doesn't give you free points. On my serve it's like every point you have to take, you have to play the rally. "On my service games there's always rallies, rallies. He served well all the match. Yeah, you're under pressure."

Points, confidence, prize money: Karatsev fairy-tale has happy ending

Stefanos Tsitsipas once riled Daniil Medvedev by calling him "boring", but he now considers the in-form Russian "smart" ahead of their Australian Open semi-final on Friday.

The pair two men first met on court at Miami in 2018 and have played six times, with Medvedev leading their series with five wins.

But the popular Greek Tsitsipas, who came back from two sets down to shock 20-time Grand Slam champion Rafael Nadal in the quarter-finals, won their last encounter at the ATP Tour Finals in 2019.

Defending champion and world number one Novak Djokovic or Russian qualifier Aslan Karatsev awaits whoever wins the night match in Sunday's decider.

A war of words erupted between Tsitsipas and Medvedev after their 2019 clash in Shanghai, when the Greek lashed out at the Russian's "boring" style of play, with his big serve and relentless baseline rallies.

Their frosty relationship has persisted, but Tsitsipas no longer considers him dull, with the 24-year-old on a 19-match win streak dating back to November.

"Medvedev is going to be a difficult task. He's in very good shape, playing good tennis, playing accurate, playing simple," said Tsitsipas.

"Might have said in the past that he plays boring, but I don't really think he plays boring.&nbsp;

"He just plays extremely smart and outplays you. He's somebody I really need to be careful with and just take my chances and press. That would be very important."

<h2>- 'Amazing player' -</h2>

The 22-year-old Tsitsipas was two sets down and seemed to be heading for defeat against Nadal before launching an astonishing comeback to go through 3-6, 2-6, 7-6 (7/4), 6-4, 7-5 in four hours and five minutes.&nbsp;

It was just the second time Nadal had lost when two sets up in a Grand Slam and only the third time in his entire long career.

"Stefanos is an amazing player, big serve, great volley," said Medvedev, who beat fellow Russian Andrey Rublev over three sets in his quarter-final.&nbsp;

"Tough to play. I think he's improving physically because maybe two years ago could say, yeah, out of five sets it's maybe not bad to play him. I don't think it's the case right now."

Despite the gruelling clash with Nadal and less time to prepare than Medvedev, Tsitsipas -- who had benefited from a fourth-round walkover against Matteo Berrettini -- insisted he didn't feel "completely exhausted".

"I got the opportunity to play longer, feel the court, understand the environment that I'm in. So that could probably be seen as something positive," he said.

"I think with experience I have realised how to preserve my energy and when I really have to put in the hard work in the match."

Both men head into the semi-final bidding for a maiden Grand Slam title.

Tsitsipas has never gone beyond a semi-final before, falling to Nadal in the last four at the 2019 Australian Open and to Djokovic at Roland Garros last year.

He has his sights set on becoming the youngest Grand Slam champion since Djokovic won the title at Melbourne Park in 2008 and the first Greek, man or woman, to lift a major trophy.

Medvedev will be playing his first semi in Melbourne as he continues to knock on the door of Grand Slam success, having reached the 2019 US Open final, where he was pipped in five sets by Nadal, and the last four in New York in 2020.

Stefanos Tsitsipas once riled Daniil Medvedev by calling him "boring", but he now considers the in-form Russian "smart" ahead of their Australian Open semi-final on Friday.

Stefanos Tsitsipas once riled Daniil Medvedev by calling him "boring", but he now considers the in-form Russian "smart" ahead of their Australian Open semi-final on Friday. The pair two men first met on court at Miami in 2018 and have played six times, with Medvedev leading their series with five wins. But the popular Greek Tsitsipas, who came back from two sets down to shock 20-time Grand Slam champion Rafael Nadal in the quarter-finals, won their last encounter at the ATP Tour Finals in 2019. Defending champion and world number one Novak Djokovic or Russian qualifier Aslan Karatsev awaits whoever wins the night match in Sunday's decider. A war of words erupted between Tsitsipas and Medvedev after their 2019 clash in Shanghai, when the Greek lashed out at the Russian's "boring" style of play, with his big serve and relentless baseline rallies. Their frosty relationship has persisted, but Tsitsipas no longer considers him dull, with the 24-year-old on a 19-match win streak dating back to November. "Medvedev is going to be a difficult task. He's in very good shape, playing good tennis, playing accurate, playing simple," said Tsitsipas. "Might have said in the past that he plays boring, but I don't really think he plays boring. "He just plays extremely smart and outplays you. He's somebody I really need to be careful with and just take my chances and press. That would be very important." - 'Amazing player' - The 22-year-old Tsitsipas was two sets down and seemed to be heading for defeat against Nadal before launching an astonishing comeback to go through 3-6, 2-6, 7-6 (7/4), 6-4, 7-5 in four hours and five minutes. It was just the second time Nadal had lost when two sets up in a Grand Slam and only the third time in his entire long career. "Stefanos is an amazing player, big serve, great volley," said Medvedev, who beat fellow Russian Andrey Rublev over three sets in his quarter-final. "Tough to play. I think he's improving physically because maybe two years ago could say, yeah, out of five sets it's maybe not bad to play him. I don't think it's the case right now." Despite the gruelling clash with Nadal and less time to prepare than Medvedev, Tsitsipas -- who had benefited from a fourth-round walkover against Matteo Berrettini -- insisted he didn't feel "completely exhausted". "I got the opportunity to play longer, feel the court, understand the environment that I'm in. So that could probably be seen as something positive," he said. "I think with experience I have realised how to preserve my energy and when I really have to put in the hard work in the match." Both men head into the semi-final bidding for a maiden Grand Slam title. Tsitsipas has never gone beyond a semi-final before, falling to Nadal in the last four at the 2019 Australian Open and to Djokovic at Roland Garros last year. He has his sights set on becoming the youngest Grand Slam champion since Djokovic won the title at Melbourne Park in 2008 and the first Greek, man or woman, to lift a major trophy. Medvedev will be playing his first semi in Melbourne as he continues to knock on the door of Grand Slam success, having reached the 2019 US Open final, where he was pipped in five sets by Nadal, and the last four in New York in 2020.

Tsitsipas says in-form Medvedev no longer 'boring'

World number one Novak Djokovic ended the dream run of Russian qualifier Aslan Karatsev in the Australian Open semi-finals Thursday to maintain his bid for a record-extending ninth title.&nbsp;

The 33-year-old Serb, showing no ill-effects from an abdomen injury sustained in the third round, overwhelmed the 114th-ranked Karatsev 6-3, 6-4, 6-2 to reach his 28th Grand Slam final.

"This is the best I've felt in the entire tournament," said Djokovic, who hit 30 winners and 17 aces.

"I could swing through the ball. No pain. The best match so far."

Djokovic, 34, remains on course for his 18th Grand Slam trophy, nipping at the heels of rivals Roger Federer and Rafael Nadal, who are on 20.

In his way will be either fourth seed Daniil Medvedev or Nadal's conqueror Stefanos Tsitispas, the fifth seed, a clash Djokovic said he was eagerly anticipating.

"I'm going to take the popcorn and enjoy it," he said. "I absolutely have zero preference.

"I thought Stefanos did incredibly well to hang in there because Rafa was playing amazing," added Djokovic.

"Medvedev is the guy. He is playing at the highest level the last three months."

Djokovic, who hasn't been practising between matches because of his injury, said he hoped to train before the final.

"Probably more likely (to train) on Saturday," he said. "Recovery is priority right now. I'm feeling the ball well and playing well." &nbsp;

<h2>- Butterfly battle -</h2>

Moving sharper than he has since he was injured while playing Taylor Fritz, Djokovic lifted his intensity in his best performance of the tournament.

Karatsev, however, wasn't disgraced after becoming the first man in the Open era to reach a semi-final on his Grand Slam debut, and just the second qualifier to do so at the Australian Open after Bob Giltinan in 1977.&nbsp;&nbsp;

His magical run included wins over eighth seed Diego Schwartzmann, 20th seed Felix Auger-Aliassime and 18th seed Grigor Dimitrov, but came up short against the ultimate test.&nbsp;

A wary Djokovic had predicted Karatsev would come out aggressively and he proved right with the underdog undaunted in a free-wheeling approach.&nbsp;

Aside from being briefly menaced by a butterfly as he prepared to serve, Djokovic wasn't rattled and his defensive mastery suffocated Karatsev in the eighth game.

He subsequently clinched the first set with an ace and then put the foot down to break to love.

Karatsev wouldn't go away, almost wiping away Djokovic's advantage before the eight-time champion held serve in a see-sawing 10th game and celebrated with gusto.

Despite some service struggles, Djokovic continued was not to be denied to record his first straight-sets victory since an opening-round romp against Jeremy Chardy.

Journeyman Karatsev, who spent a chunk of his youth in Israel, Germany and Spain, and had failed on nine previous occasions to qualify for a Grand Slam tournament, is set to rocket to 42 on the ATP rankings.

World number one Novak Djokovic ended the dream run of Russian qualifier Aslan Karatsev in the Australian Open semi-finals Thursday to maintain his bid for a record-extending ninth title.

World number one Novak Djokovic ended the dream run of Russian qualifier Aslan Karatsev in the Australian Open semi-finals Thursday to maintain his bid for a record-extending ninth title. The 33-year-old Serb, showing no ill-effects from an abdomen injury sustained in the third round, overwhelmed the 114th-ranked Karatsev 6-3, 6-4, 6-2 to reach his 28th Grand Slam final. "This is the best I've felt in the entire tournament," said Djokovic, who hit 30 winners and 17 aces. "I could swing through the ball. No pain. The best match so far." Djokovic, 34, remains on course for his 18th Grand Slam trophy, nipping at the heels of rivals Roger Federer and Rafael Nadal, who are on 20. In his way will be either fourth seed Daniil Medvedev or Nadal's conqueror Stefanos Tsitispas, the fifth seed, a clash Djokovic said he was eagerly anticipating. "I'm going to take the popcorn and enjoy it," he said. "I absolutely have zero preference. "I thought Stefanos did incredibly well to hang in there because Rafa was playing amazing," added Djokovic. "Medvedev is the guy. He is playing at the highest level the last three months." Djokovic, who hasn't been practising between matches because of his injury, said he hoped to train before the final. "Probably more likely (to train) on Saturday," he said. "Recovery is priority right now. I'm feeling the ball well and playing well." - Butterfly battle - Moving sharper than he has since he was injured while playing Taylor Fritz, Djokovic lifted his intensity in his best performance of the tournament. Karatsev, however, wasn't disgraced after becoming the first man in the Open era to reach a semi-final on his Grand Slam debut, and just the second qualifier to do so at the Australian Open after Bob Giltinan in 1977. His magical run included wins over eighth seed Diego Schwartzmann, 20th seed Felix Auger-Aliassime and 18th seed Grigor Dimitrov, but came up short against the ultimate test. A wary Djokovic had predicted Karatsev would come out aggressively and he proved right with the underdog undaunted in a free-wheeling approach. Aside from being briefly menaced by a butterfly as he prepared to serve, Djokovic wasn't rattled and his defensive mastery suffocated Karatsev in the eighth game. He subsequently clinched the first set with an ace and then put the foot down to break to love. Karatsev wouldn't go away, almost wiping away Djokovic's advantage before the eight-time champion held serve in a see-sawing 10th game and celebrated with gusto. Despite some service struggles, Djokovic continued was not to be denied to record his first straight-sets victory since an opening-round romp against Jeremy Chardy. Journeyman Karatsev, who spent a chunk of his youth in Israel, Germany and Spain, and had failed on nine previous occasions to qualify for a Grand Slam tournament, is set to rocket to 42 on the ATP rankings.

Peerless Djokovic ends Karatsev dream to reach Australian Open final

Serena Williams broke down in tears and cut short her post-match press conference after another failed bid to equal Margaret Court's record Grand Slam haul, calling her defeat to Naomi Osaka "a big error day".

The veteran American's quest to reach a ninth Australian Open final and match Court's 24 major singles titles ended in a 6-3, 6-4 semi-final mauling by the Japanese third seed.

Williams, 39, broke early for a 2-0 lead before Osaka reeled off five straight games to leave her shellshocked.

"The difference today was errors. I made so many errors," said the 23-time Grand Slam champion.

"Honestly, it was opportunities where I could have won. I could have been up 5-0. It was a big error day for me."

Pressed on what caused her to make so many mistakes, tears began to flow as she told reporters: "I don't know. I'm done," before walking out.

In a clash of power games clashed, it was Osaka who had the edge, hitting 20 winners to Williams's 12, while also committing three fewer unforced errors on 21.

Williams said she had been hitting well all tournament and had no explanation for the loss other than "too many mistakes there, easy mistakes".

Osaka's victory left Williams still stranded on 23 Grand Slam crowns, one short of Court's tally, with her last major title coming in Melbourne four years ago when she was pregnant.

Williams has lost four Slam finals since and as she walked off court put her hand over her heart, almost as if saying farewell.

Asked about it afterwards, she suggested the gesture was more about acknowledging the crowd, who were allowed back into Rod Laver Arena after a five-day snap lockdown and gave the American a rousing send-off.

"I don't know. If I ever say farewell, I wouldn't tell anyone," she said.

Serena Williams broke down in tears and cut short her post-match press conference after another failed bid to equal Margaret Court's record Grand Slam haul, calling her defeat to Naomi Osaka "a big error day".

Serena Williams broke down in tears and cut short her post-match press conference after another failed bid to equal Margaret Court's record Grand Slam haul, calling her defeat to Naomi Osaka "a big error day". The veteran American's quest to reach a ninth Australian Open final and match Court's 24 major singles titles ended in a 6-3, 6-4 semi-final mauling by the Japanese third seed. Williams, 39, broke early for a 2-0 lead before Osaka reeled off five straight games to leave her shellshocked. "The difference today was errors. I made so many errors," said the 23-time Grand Slam champion. "Honestly, it was opportunities where I could have won. I could have been up 5-0. It was a big error day for me." Pressed on what caused her to make so many mistakes, tears began to flow as she told reporters: "I don't know. I'm done," before walking out. In a clash of power games clashed, it was Osaka who had the edge, hitting 20 winners to Williams's 12, while also committing three fewer unforced errors on 21. Williams said she had been hitting well all tournament and had no explanation for the loss other than "too many mistakes there, easy mistakes". Osaka's victory left Williams still stranded on 23 Grand Slam crowns, one short of Court's tally, with her last major title coming in Melbourne four years ago when she was pregnant. Williams has lost four Slam finals since and as she walked off court put her hand over her heart, almost as if saying farewell. Asked about it afterwards, she suggested the gesture was more about acknowledging the crowd, who were allowed back into Rod Laver Arena after a five-day snap lockdown and gave the American a rousing send-off. "I don't know. If I ever say farewell, I wouldn't tell anyone," she said.

'I'm done': Williams walks out in tears after semi-final defeat

Naomi Osaka emphatically ended Serena Williams's latest bid for a record-equalling 24th Grand Slam crown with a straight-sets demolition in the Australian Open semi-finals Thursday.

The Japanese third seed swept past the American veteran 6-3, 6-4 on Rod Laver Arena in front of thousands of fans allowed back in after Melbourne lifted a snap five-day lockdown.

She will face either American Jennifer Brady or Czech Karolina Muchova on Saturday for a fourth Slam title after her success at Flushing Meadows in 2018 and last year, and Melbourne in 2019.

The victory left Williams, who won her last major in Melbourne in 2017, stranded on 23 Grand Slam titles as she strives to match Margaret Court's all-time record.

Since winning while pregnant in Australia four years ago, Williams has lost four Slam finals, including one to Osaka in a controversial and heated 2018 US Open decider which left both women in tears.

"I hit a lot of unforced errors in the first few games, I was just really nervous and scared," said Osaka, who reeled off five games in a row in the opening set after going 2-0 down.

"But then I sort of eased my way into it and the biggest thing for me was having fun."

"For me, it's always an honour to play her and I didn't want to go out (of the tournament) really bad, so I just tried my best," she added.

<h2>- Big-match experience -</h2>

While Osaka held a 2-1 head-to-head advantage going into the blockbuster clash, 39-year-old Williams had a huge edge on big-match experience.

Ahead of the showdown, she had won all eight of her previous semi-finals at Melbourne Park stretching back 18 years to when she beat Kim Clijsters on her way to her first title in Australia.

Her first ever Grand Slam semi, against Lindsay Davenport at 1999 US Open, was played when Osaka was just one.

But the 23-year-old boasted a 100 percent win record in Slams when she got past the fourth round, and she kept it intact Thursday.

Williams worked hard on her fitness during the off-season and quickly asserted herself, breaking Osaka straight away with the Japanese sensation having issues with the sun and ball toss.

She consolidated by holding serve, with Osaka guilty of five unforced errors in the opening two games.

Osaka said before the match she still felt intimidated seeing Williams on the other side of the net, but her early nerves soon settled.

She saved a break point in the next game and got off the mark with an ace, then broke back to level the scores at 2-2 when Williams sent a forehand long.

Now well and truly in her groove, with her forehand doing most of the damage, Osaka won five games in a row, and the set, to leave Williams stunned.

She broke again on Williams's opening serve of the second set, with the American screaming: "Make a shot, make a shot!"

With the crowd roaring her on, Williams stayed in touch and Osaka's eighth double fault gave her the American a break back.

But it was a short-lived reprieve with Osaka breaking again and calmly serving out for victory.

Naomi Osaka emphatically ended Serena Williams's latest bid for a record-equalling 24th Grand Slam crown with a straight-sets demolition in the Australian Open semi-finals Thursday.

Naomi Osaka emphatically ended Serena Williams's latest bid for a record-equalling 24th Grand Slam crown with a straight-sets demolition in the Australian Open semi-finals Thursday. The Japanese third seed swept past the American veteran 6-3, 6-4 on Rod Laver Arena in front of thousands of fans allowed back in after Melbourne lifted a snap five-day lockdown. She will face either American Jennifer Brady or Czech Karolina Muchova on Saturday for a fourth Slam title after her success at Flushing Meadows in 2018 and last year, and Melbourne in 2019. The victory left Williams, who won her last major in Melbourne in 2017, stranded on 23 Grand Slam titles as she strives to match Margaret Court's all-time record. Since winning while pregnant in Australia four years ago, Williams has lost four Slam finals, including one to Osaka in a controversial and heated 2018 US Open decider which left both women in tears. "I hit a lot of unforced errors in the first few games, I was just really nervous and scared," said Osaka, who reeled off five games in a row in the opening set after going 2-0 down. "But then I sort of eased my way into it and the biggest thing for me was having fun." "For me, it's always an honour to play her and I didn't want to go out (of the tournament) really bad, so I just tried my best," she added. - Big-match experience - While Osaka held a 2-1 head-to-head advantage going into the blockbuster clash, 39-year-old Williams had a huge edge on big-match experience. Ahead of the showdown, she had won all eight of her previous semi-finals at Melbourne Park stretching back 18 years to when she beat Kim Clijsters on her way to her first title in Australia. Her first ever Grand Slam semi, against Lindsay Davenport at 1999 US Open, was played when Osaka was just one. But the 23-year-old boasted a 100 percent win record in Slams when she got past the fourth round, and she kept it intact Thursday. Williams worked hard on her fitness during the off-season and quickly asserted herself, breaking Osaka straight away with the Japanese sensation having issues with the sun and ball toss. She consolidated by holding serve, with Osaka guilty of five unforced errors in the opening two games. Osaka said before the match she still felt intimidated seeing Williams on the other side of the net, but her early nerves soon settled. She saved a break point in the next game and got off the mark with an ace, then broke back to level the scores at 2-2 when Williams sent a forehand long. Now well and truly in her groove, with her forehand doing most of the damage, Osaka won five games in a row, and the set, to leave Williams stunned. She broke again on Williams's opening serve of the second set, with the American screaming: "Make a shot, make a shot!" With the crowd roaring her on, Williams stayed in touch and Osaka's eighth double fault gave her the American a break back. But it was a short-lived reprieve with Osaka breaking again and calmly serving out for victory.

Osaka shatters Williams record bid to make Australian Open final

Spanish great Rafael Nadal said he wouldn't blame quarantine or look for other excuses on Wednesday after his Grand Slam record bid was torpedoed by an inspired Stefanos Tsitsipas at the Australian Open.

Nadal's hunt for a record 21st major title ended in five sets against the Greek fifth seed, who came back from two sets down to win 3-6, 2-6, 7-6 (7/4), 6-4, 7-5 in 4hr 5min in the quarter-finals.

The 34-year-old was playing his first tournament of the year after back tightness, following a stint in Australian quarantine, kept him out of the ATP Cup team competition.

But he refused to blame the unusual build-up to the coronavirus-disrupted Grand Slam for his surprise defeat.

"We can find excuses or reasons, or maybe this quarantine that we need to be more time in the room than usual," he said.

"But I'm not the guy that's going to find excuses on that or going to complain about what happened, no.

"Just accept. I never considered myself an unlucky person at all. Doesn't matter the injuries that I had. I think I am a very lucky person."

Defending champion Novak Djokovic and Alexander Zverev both hit out at quarantine after their quarter-final on Tuesday, blaming it for a rash of early-season injuries.

But Nadal dismissed talk of halting the tour, or playing it in a series of "bubbles" to avoid further stints in quarantine, as suggested by Djokovic.

"There are two options: stop the tour or keep going," he said.

"It's tough for the players, of course... but on the other hand, if we stop the tour, why and how and when we will be able to come back? And a lot of jobs gonna suffer a lot."

Nadal added: "We need to think a little bit bigger... we need to find solutions and we need to adapt to this very tough times that we are facing."

Spanish great Rafael Nadal said he wouldn't blame quarantine or look for other excuses on Wednesday after his Grand Slam record bid was torpedoed by an inspired Stefanos Tsitsipas at the Australian Open.

Spanish great Rafael Nadal said he wouldn't blame quarantine or look for other excuses on Wednesday after his Grand Slam record bid was torpedoed by an inspired Stefanos Tsitsipas at the Australian Open. Nadal's hunt for a record 21st major title ended in five sets against the Greek fifth seed, who came back from two sets down to win 3-6, 2-6, 7-6 (7/4), 6-4, 7-5 in 4hr 5min in the quarter-finals. The 34-year-old was playing his first tournament of the year after back tightness, following a stint in Australian quarantine, kept him out of the ATP Cup team competition. But he refused to blame the unusual build-up to the coronavirus-disrupted Grand Slam for his surprise defeat. "We can find excuses or reasons, or maybe this quarantine that we need to be more time in the room than usual," he said. "But I'm not the guy that's going to find excuses on that or going to complain about what happened, no. "Just accept. I never considered myself an unlucky person at all. Doesn't matter the injuries that I had. I think I am a very lucky person." Defending champion Novak Djokovic and Alexander Zverev both hit out at quarantine after their quarter-final on Tuesday, blaming it for a rash of early-season injuries. But Nadal dismissed talk of halting the tour, or playing it in a series of "bubbles" to avoid further stints in quarantine, as suggested by Djokovic. "There are two options: stop the tour or keep going," he said. "It's tough for the players, of course... but on the other hand, if we stop the tour, why and how and when we will be able to come back? And a lot of jobs gonna suffer a lot." Nadal added: "We need to think a little bit bigger... we need to find solutions and we need to adapt to this very tough times that we are facing."

Nadal not blaming quarantine after Australian Open shock

Stefanos Tsitsipas on Wednesday stunned 20-time Grand Slam winner Rafael Nadal 3-6, 2-6, 7-6 (7/4), 6-4, 7-5 at the Australian Open 2021 to set-up a cracking semi-final encounter against Daniil Medvedev.&nbsp;Tsitsipas came back from 2 sets down to defeat the Spaniard as he became the only the second&nbsp;player to beat Nadal from that scoreline.&nbsp;

Nadal, a second seed, was on course for a comfortable win as the Spaniard won the first two set. However, Tsitsipas upped the ante to turn around the match and prevailed 3-6, 2-6, 7-6 (7/4), 6-4, 7-5 in a seismic upset.

"I don't know what happened after the third set -- I fly like little bird, everything was working for me," Tsitsipas said.

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"The emotions at the end were indescribable, they were something else."

Nadal lost the match after going two sets up in a Grand Slam - only twice in his career - having previously been defeated by Fabio Fognini in the third round of the US Open 2015.

Nadal, 34, ends the Australian Open 2021 tied with Roger Federer on 20 Grand Slam titles. However, Novak Djokovic can still pull within the two if he goes on to win his 18th Grand Slam at Melbourne Park. Djokovic will play the other semi-final against Russian qualifier Aslan Karatsev.

ALSO READ:&nbsp;<a href="https://www.wionews.com/sports/australian-open-medvedev-beats-compatriot-rublev-to-reach-semis-364235" hreflang="en">Australian Open: Medvedev beats compatriot Rublev to reach semis</a>

Fifth seed Tsitsipas will not look to reach his maiden Grand Slam final when he takes the court to face an in-form Daniil Medvedev in the semi-final. Tsitsipas defeated Nadal for just the second time off eight matches.&nbsp;&nbsp;

<h2>Australian Open 2021 Quarter-Final results:</h2>

Men's singles

Daniil Medvedev (RUS x4) bt Andrey Rublev (RUS x7) 7-5, 6-3, 6-2

Stefanos Tsitsipas (GRE x5) bt Rafael Nadal (ESP x2) 3-6, 2-6, 7-6 (7/4), 6-4, 7-5

Women's singles

Karolina Muchova (CZE x25) bt Ashleigh Barty (AUS x1) 1-6, 6-3, 6-2

Jennifer Brady (USA x22) bt Jessica Pegula (USA) 4-6, 6-2, 6-1

Stefanos Tsitsipas on Wednesday stunned 20-time Grand Slam winner Rafael Nadal 3-6, 2-6, 7-6 (7/4), 6-4, 7-5 at the Australian Open 2021 to set-up a cracking semi-final encounter against Daniil Medvedev.

Stefanos Tsitsipas on Wednesday stunned 20-time Grand Slam winner Rafael Nadal 3-6, 2-6, 7-6 (7/4), 6-4, 7-5 at the Australian Open 2021 to set-up a cracking semi-final encounter against Daniil Medvedev. Tsitsipas came back from 2 sets down to defeat the Spaniard as he became the only the second player to beat Nadal from that scoreline. Nadal, a second seed, was on course for a comfortable win as the Spaniard won the first two set. However, Tsitsipas upped the ante to turn around the match and prevailed 3-6, 2-6, 7-6 (7/4), 6-4, 7-5 in a seismic upset. "I don't know what happened after the third set -- I fly like little bird, everything was working for me," Tsitsipas said. ALSO READ: 'Within the rules': Shocked Barty says Muchova timeout not to blame "The emotions at the end were indescribable, they were something else." Nadal lost the match after going two sets up in a Grand Slam - only twice in his career - having previously been defeated by Fabio Fognini in the third round of the US Open 2015. Nadal, 34, ends the Australian Open 2021 tied with Roger Federer on 20 Grand Slam titles. However, Novak Djokovic can still pull within the two if he goes on to win his 18th Grand Slam at Melbourne Park. Djokovic will play the other semi-final against Russian qualifier Aslan Karatsev. ALSO READ: Australian Open: Medvedev beats compatriot Rublev to reach semis Fifth seed Tsitsipas will not look to reach his maiden Grand Slam final when he takes the court to face an in-form Daniil Medvedev in the semi-final. Tsitsipas defeated Nadal for just the second time off eight matches. Australian Open 2021 Quarter-Final results: Men's singles Daniil Medvedev (RUS x4) bt Andrey Rublev (RUS x7) 7-5, 6-3, 6-2 Stefanos Tsitsipas (GRE x5) bt Rafael Nadal (ESP x2) 3-6, 2-6, 7-6 (7/4), 6-4, 7-5 Women's singles Karolina Muchova (CZE x25) bt Ashleigh Barty (AUS x1) 1-6, 6-3, 6-2 Jennifer Brady (USA x22) bt Jessica Pegula (USA) 4-6, 6-2, 6-1

Stefanos Tsitsipas stuns Rafael Nadal at Australian Open, to face Daniil Medvedev in semi-final

Ashleigh Barty said Thursday Karolina Muchova was within her rights to take a medical timeout that changed the course of their Australian Open quarter-final because her "head was spinning".

The Czech 25th seed looked finished after losing the opening set 6-1, but top seed Barty lost momentum following the near 10-minute break early in the second set as Muchova received medical attention.

A revitalised Muchova, who fought back on a hot day to snuff out hopes of first Australian champion for 43 years with a shock 1-6, 6-3, 6-2 win, said: "It was very tough and I was a bit lost on the court and my head was spinning so I took a break. It helped me."

Barty said it was not for her to pass judgement on her opponent's actions.

"When you call for the trainer, you obviously tell the umpire what the reason is," said the world number one.&nbsp;

"And then the doctor and physios come out and assess it. That's within the rules," said Barty.&nbsp;

"Obviously there are rules when we go off the court for whatever areas you're getting treated because that's quite normal.&nbsp;

"But that's not really my decision to make on whether or what her medical condition was or what the timeout was for."

Muchova, down 1-2 in the second set at the time, broke Barty immediately after the timeout then earned another to take the set.

"I was disappointed that I let that become a turning point," said Barty, who was bidding to become the first home winner since Chris O'Neil in 1978.

"I'm experienced anough now to be able to deal with that. I would have liked to have just been a little bit sharper the next game."&nbsp;

The Australian's error count began mounting as Muchova surged into her first ever Grand Slam semi-final.

"Probably pressed a little bit trying to be overly aggressive," she admitted.&nbsp;

Barty had enjoyed a great start to the season after not playing for almost 12 months because of coronavirus, winning a pre-Australian Open warm-up Yarra Valley Classic at Melbourne Park and not dropping a set in the first four rounds of the Australian Open.

"Yeah, it's heartbreaking, of course," she said.&nbsp;

"But will it deter me, will it ruin the fact we've had a really successful start to our season? Absolutely not."

Ashleigh Barty said Thursday Karolina Muchova was within her rights to take a medical timeout that changed the course of their Australian Open quarter-final because her "head was spinning".

Ashleigh Barty said Thursday Karolina Muchova was within her rights to take a medical timeout that changed the course of their Australian Open quarter-final because her "head was spinning". The Czech 25th seed looked finished after losing the opening set 6-1, but top seed Barty lost momentum following the near 10-minute break early in the second set as Muchova received medical attention. A revitalised Muchova, who fought back on a hot day to snuff out hopes of first Australian champion for 43 years with a shock 1-6, 6-3, 6-2 win, said: "It was very tough and I was a bit lost on the court and my head was spinning so I took a break. It helped me." Barty said it was not for her to pass judgement on her opponent's actions. "When you call for the trainer, you obviously tell the umpire what the reason is," said the world number one. "And then the doctor and physios come out and assess it. That's within the rules," said Barty. "Obviously there are rules when we go off the court for whatever areas you're getting treated because that's quite normal. "But that's not really my decision to make on whether or what her medical condition was or what the timeout was for." Muchova, down 1-2 in the second set at the time, broke Barty immediately after the timeout then earned another to take the set. "I was disappointed that I let that become a turning point," said Barty, who was bidding to become the first home winner since Chris O'Neil in 1978. "I'm experienced anough now to be able to deal with that. I would have liked to have just been a little bit sharper the next game." The Australian's error count began mounting as Muchova surged into her first ever Grand Slam semi-final. "Probably pressed a little bit trying to be overly aggressive," she admitted. Barty had enjoyed a great start to the season after not playing for almost 12 months because of coronavirus, winning a pre-Australian Open warm-up Yarra Valley Classic at Melbourne Park and not dropping a set in the first four rounds of the Australian Open. "Yeah, it's heartbreaking, of course," she said. "But will it deter me, will it ruin the fact we've had a really successful start to our season? Absolutely not."

'Within the rules': Shocked Barty says Muchova timeout not to blame

Serbian ace Novak Djokovic smashed his racquet and then knocked out Alexander Zverev from the Australian Open as the defending champion entered the semi-finals of the Grand Slam on Tuesday.&nbsp;

Nursing an abdominal injury, Djokovic produced a patchy performance but credit to his mental strength that he went on to win the match against Zverev by&nbsp;6-7 (6/8), 6-2, 6-4, 7-6 (8/6).&nbsp;

Djokovic is being tipped as hot&nbsp;favourite&nbsp;to reach the final of Australian Open when he locks horns with Russian qualifier Aslan&nbsp;Karatsev, who continued his dream run&nbsp;with a 2-6, 6-4, 6-1, 6-2 win against injured Bulgarian Grigor Dimitrov.&nbsp;

The world number ripped his racquet apart after slipping behind in the third set but recovered brilliantly to win the set and was ice-cool on the big&nbsp;points as he drilled an ace to win the decisive tie-breaker.&nbsp;

<img alt="Djokovic" data-entity-type="file" data-entity-uuid="172bbed1-ba7f-44db-a330-09c261598931" src="//cdn.wionews.com/sites/default/files/inline-images/000_9349YN.jpg" />

"Down to the very last shot it was anybody's match," said the 33-year-old Serb.&nbsp;&nbsp;&nbsp;

"A lot of nerves out there, a lot of pressure. Emotionally I feel a little bit drained, honestly."&nbsp;

ALSO READ:&nbsp;<a href="https://www.wionews.com/sports/williams-osaka-into-semis-as-russian-fairytale-continues-364016" hreflang="en">Williams, Osaka into semis as Russian fairytale continues</a>

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Djokovic remains on track for a record-extending ninth Australian Open title and 18th&nbsp;Grand Slam trophy as he continues to chase rivals Roger Federer and Rafael Nadal – who both have 20.&nbsp;&nbsp;

Earlier, Williams took a step towards a record-equalling&nbsp;24th Grand Slam title with a 6-3, 6-3 dismantling of second seed Simona Halep, her nemesis in the 2019 Wimbledon final.&nbsp;

ALSO READ:&nbsp;<a href="https://www.wionews.com/sports/history-making-qualifier-karatsev-reaches-australian-open-semis-364012" hreflang="en">History-making qualifier Karatsev reaches Australian Open semis</a>

Williams, 39, said her level was improving ahead of her meeting with Japan's Osaka, who came out on top in their tempestuous 2018 US Open title match.&nbsp;&nbsp;

"Definitely think this is the best match I have played this tournament, for sure," said the 10th seed.&nbsp;&nbsp;

"Obviously I had to, going up against the number two in the world, so I knew I had to do better."&nbsp;

(With AFP inputs)&nbsp;

Serbian ace Novak Djokovic smashed his racquet and then knocked out Alexander Zverev from the Australian Open as the defending champion entered the semi-finals of the Grand Slam on Tuesday.

Serbian ace Novak Djokovic smashed his racquet and then knocked out Alexander Zverev from the Australian Open as the defending champion entered the semi-finals of the Grand Slam on Tuesday. Nursing an abdominal injury, Djokovic produced a patchy performance but credit to his mental strength that he went on to win the match against Zverev by 6-7 (6/8), 6-2, 6-4, 7-6 (8/6). Djokovic is being tipped as hot favourite to reach the final of Australian Open when he locks horns with Russian qualifier Aslan Karatsev, who continued his dream run with a 2-6, 6-4, 6-1, 6-2 win against injured Bulgarian Grigor Dimitrov. The world number ripped his racquet apart after slipping behind in the third set but recovered brilliantly to win the set and was ice-cool on the big points as he drilled an ace to win the decisive tie-breaker. "Down to the very last shot it was anybody's match," said the 33-year-old Serb. "A lot of nerves out there, a lot of pressure. Emotionally I feel a little bit drained, honestly." ALSO READ: Williams, Osaka into semis as Russian fairytale continues Guess who's in the lead.#AusOpen | @DjokerNole pic.twitter.com/H5684fGi8E — Tennis Channel (@TennisChannel) February 16, 2021 × Djokovic remains on track for a record-extending ninth Australian Open title and 18th Grand Slam trophy as he continues to chase rivals Roger Federer and Rafael Nadal – who both have 20. Earlier, Williams took a step towards a record-equalling 24th Grand Slam title with a 6-3, 6-3 dismantling of second seed Simona Halep, her nemesis in the 2019 Wimbledon final. ALSO READ: History-making qualifier Karatsev reaches Australian Open semis Williams, 39, said her level was improving ahead of her meeting with Japan's Osaka, who came out on top in their tempestuous 2018 US Open title match. "Definitely think this is the best match I have played this tournament, for sure," said the 10th seed. "Obviously I had to, going up against the number two in the world, so I knew I had to do better." (With AFP inputs)

Racquet-smashing Novak Djokovic defeats Alexander Zverev to book semi-final spot

Serena Williams blasted past Simona Halep to set up an Australian Open semi-final showdown with Naomi Osaka on Tuesday, as Russian qualifier Aslan Karatsev extended his fairytale run.

Williams took a step towards a record-equalling 24th Grand Slam title with a 6-3, 6-3 dismantling of second seed Halep, the American's nemesis in the 2019 Wimbledon final.

Williams, 39, said her level was improving ahead of her meeting with Japan's Osaka, who came out on top in their tempestuous 2018 US Open title match.

"Definitely think this is the best match I have played this tournament, for sure," said the 10th seed.

"Obviously I had to, going up against the number two in the world, so I knew I had to do better."&nbsp;

Their semi-final promises much after Osaka, the reigning US Open champion, looked in great touch in her 6-2, 6-2 win over Taiwan's Hsieh Su-wei.

Displaying great focus against the awkward Hsieh, ranked 71 and playing her first Slam quarter-final aged 35, Osaka hit 24 winners and was detained on Rod Laver Arena for only 66 minutes.

"I told myself just to be really intense from the beginning," said the Japanese star, the reigning US Open champion.

"I felt like I knew what to expect and that I couldn't afford to be lazy with my footwork or anything."

Elsewhere, 114th-ranked Karatsev became the first man to reach a Grand Slam semi on debut when he ousted a hobbling Grigor Dimitrov 2-6, 6-4, 6-1, 6-2.

The 27-year-old has knocked out three seeds on his run to the last four, where he will face world number one Novak Djokovic or US Open finalist Alexander Zverev.

"It's an unbelievable feeling," said Karatsev, whose career so far has been badly compromised by injury.

"It was tough at the beginning for me to hold my nerves, but I tried to find a way to play."&nbsp;

<h2>- Djokovic faces test -</h2>

Karatsev becomes only the second qualifier to reach the Australian Open semi-finals after Bob Giltinan in 1977.

He is also the lowest-ranked man to make the semis at a Slam since 125th-ranked Goran Ivanisevic at Wimbledon in 2001.

After a five-setter with Felix Auger-Aliassime in round four, Karatsev had an easier ride against Dimitrov who was wincing with pain from the third set.

The Bulgarian 18th seed, who was barely able to serve because of back spasms, took a medical timeout, but his movement was always hampered and he limped off the court after Karatsev's win.

Later, eight-time champion Djokovic will test his powers of recovery against Zverev after sustaining an abdominal injury during his five-set win against Taylor Fritz on Friday.

The reigning title-holder was again made to work on Sunday by Milos Raonic, dropping another set, before reaching the quarter-finals for the 12th time.

Djokovic showed fewer signs of pain against Raonic, but still grimaced after stretching for some shots and admitted afterwards that he was risking an extended period on the sidelines by playing on.

"I mean, it's kind of a gamble, that's what the medical team told me," said Djokovic, who is chasing an 18th Grand Slam trophy in Melbourne.&nbsp;

It could be another long night for Djokovic, who beat sixth seed Zverev in a match that went the distance in the ATP Cup the week before the Australian Open.

"We played an exhausting match in the ATP Cup and I won't expect anything less," said the Serb, who has a 5-2 win-loss record against the German world number seven.

Serena Williams blasted past Simona Halep to set up an Australian Open semi-final showdown with Naomi Osaka on Tuesday, as Russian qualifier Aslan Karatsev extended his fairytale run.

Serena Williams blasted past Simona Halep to set up an Australian Open semi-final showdown with Naomi Osaka on Tuesday, as Russian qualifier Aslan Karatsev extended his fairytale run. Williams took a step towards a record-equalling 24th Grand Slam title with a 6-3, 6-3 dismantling of second seed Halep, the American's nemesis in the 2019 Wimbledon final. Williams, 39, said her level was improving ahead of her meeting with Japan's Osaka, who came out on top in their tempestuous 2018 US Open title match. "Definitely think this is the best match I have played this tournament, for sure," said the 10th seed. "Obviously I had to, going up against the number two in the world, so I knew I had to do better." Their semi-final promises much after Osaka, the reigning US Open champion, looked in great touch in her 6-2, 6-2 win over Taiwan's Hsieh Su-wei. Displaying great focus against the awkward Hsieh, ranked 71 and playing her first Slam quarter-final aged 35, Osaka hit 24 winners and was detained on Rod Laver Arena for only 66 minutes. "I told myself just to be really intense from the beginning," said the Japanese star, the reigning US Open champion. "I felt like I knew what to expect and that I couldn't afford to be lazy with my footwork or anything." Elsewhere, 114th-ranked Karatsev became the first man to reach a Grand Slam semi on debut when he ousted a hobbling Grigor Dimitrov 2-6, 6-4, 6-1, 6-2. The 27-year-old has knocked out three seeds on his run to the last four, where he will face world number one Novak Djokovic or US Open finalist Alexander Zverev. "It's an unbelievable feeling," said Karatsev, whose career so far has been badly compromised by injury. "It was tough at the beginning for me to hold my nerves, but I tried to find a way to play." - Djokovic faces test - Karatsev becomes only the second qualifier to reach the Australian Open semi-finals after Bob Giltinan in 1977. He is also the lowest-ranked man to make the semis at a Slam since 125th-ranked Goran Ivanisevic at Wimbledon in 2001. After a five-setter with Felix Auger-Aliassime in round four, Karatsev had an easier ride against Dimitrov who was wincing with pain from the third set. The Bulgarian 18th seed, who was barely able to serve because of back spasms, took a medical timeout, but his movement was always hampered and he limped off the court after Karatsev's win. Later, eight-time champion Djokovic will test his powers of recovery against Zverev after sustaining an abdominal injury during his five-set win against Taylor Fritz on Friday. The reigning title-holder was again made to work on Sunday by Milos Raonic, dropping another set, before reaching the quarter-finals for the 12th time. Djokovic showed fewer signs of pain against Raonic, but still grimaced after stretching for some shots and admitted afterwards that he was risking an extended period on the sidelines by playing on. "I mean, it's kind of a gamble, that's what the medical team told me," said Djokovic, who is chasing an 18th Grand Slam trophy in Melbourne. It could be another long night for Djokovic, who beat sixth seed Zverev in a match that went the distance in the ATP Cup the week before the Australian Open. "We played an exhausting match in the ATP Cup and I won't expect anything less," said the Serb, who has a 5-2 win-loss record against the German world number seven.

Williams, Osaka into semis as Russian fairytale continues

Russian qualifier Aslan Karatsev became the first man in the Open era to reach a Grand Slam semi-final on debut Tuesday, overcoming an injured Grigor Dimitrov in four sets at the Australian Open.

The 27-year-old's dream run continued with a 2-6, 6-4, 6-1, 6-2&nbsp;win against the Bulgarian on Rod Laver Arena to set up a last-four clash with top seed Novak Djokovic or sixth seed Alexander Zverev.

But it was achieved against a player grimacing with pain from late in the third set.

Dimitrov called for a medical timeout and was heard on the court microphone saying he had "spasms", with a trainer given him treatment to his lower back.

The 18th seed gamely returned but his movement was hampered as she struggled to serve and chase down returns.&nbsp;

"Unbelievable feeling, first time in semis. Incredible," said Karatsev.

"It was tough at the beginning for me to hold my nerves, but I tried to find a way to play."&nbsp;

In making the last four, he became just the second qualifier to do so at the Australian Open after Bob Giltinan in 1977.

He was also the lowest-ranked man, at 114, to make the semis at a Slam since Goran Ivanisevic at Wimbledon in 2001 when ranked 125.

A virtual unknown before the tournament started, Karatsev has spent the bulk of his professional career fighting for points on the ATP Challenger Tour.&nbsp;

But he has played the tournament of his life in Melbourne, blitzing eighth seed Diego Schwartzmann and 20th seed Felix Auger-Aliassime on his way to meeting Dimitrov.

Dimitrov served to love to open proceedings but Karatsev fixed his radar and broke for 2-1 when the Bulgarian fluffed a forehand.

But the advantage only lasted until the next game when Dimitrov levelled then broke again for 4-2, winning five games in a row to take the opening set in just 33 minutes.

The Russian was guilty of too many loose shots and had trouble landing his forehands.

But he is a fighter and refused to go quietly, breaking for a 3-2 lead in the second on the back of a wild Dimitrov volley then breaking again to unexpectedly secure the second set.

His persistence began irritating Dimitrov, who started muttering to himself as frustrations crept in and he went 3-1 down in the third set.

The Bulgarian then began struggling as the set wore on and was barely able to serve at 1-5 before taking the medical timeout.

The 29-year-old returned but never looked like getting back in the match.

Russian qualifier Aslan Karatsev became the first man in the Open era to reach a Grand Slam semi-final on debut Tuesday, overcoming an injured Grigor Dimitrov in four sets at the Australian Open.

Russian qualifier Aslan Karatsev became the first man in the Open era to reach a Grand Slam semi-final on debut Tuesday, overcoming an injured Grigor Dimitrov in four sets at the Australian Open. The 27-year-old's dream run continued with a 2-6, 6-4, 6-1, 6-2 win against the Bulgarian on Rod Laver Arena to set up a last-four clash with top seed Novak Djokovic or sixth seed Alexander Zverev. But it was achieved against a player grimacing with pain from late in the third set. Dimitrov called for a medical timeout and was heard on the court microphone saying he had "spasms", with a trainer given him treatment to his lower back. The 18th seed gamely returned but his movement was hampered as she struggled to serve and chase down returns. "Unbelievable feeling, first time in semis. Incredible," said Karatsev. "It was tough at the beginning for me to hold my nerves, but I tried to find a way to play." In making the last four, he became just the second qualifier to do so at the Australian Open after Bob Giltinan in 1977. He was also the lowest-ranked man, at 114, to make the semis at a Slam since Goran Ivanisevic at Wimbledon in 2001 when ranked 125. A virtual unknown before the tournament started, Karatsev has spent the bulk of his professional career fighting for points on the ATP Challenger Tour. But he has played the tournament of his life in Melbourne, blitzing eighth seed Diego Schwartzmann and 20th seed Felix Auger-Aliassime on his way to meeting Dimitrov. Dimitrov served to love to open proceedings but Karatsev fixed his radar and broke for 2-1 when the Bulgarian fluffed a forehand. But the advantage only lasted until the next game when Dimitrov levelled then broke again for 4-2, winning five games in a row to take the opening set in just 33 minutes. The Russian was guilty of too many loose shots and had trouble landing his forehands. But he is a fighter and refused to go quietly, breaking for a 3-2 lead in the second on the back of a wild Dimitrov volley then breaking again to unexpectedly secure the second set. His persistence began irritating Dimitrov, who started muttering to himself as frustrations crept in and he went 3-1 down in the third set. The Bulgarian then began struggling as the set wore on and was barely able to serve at 1-5 before taking the medical timeout. The 29-year-old returned but never looked like getting back in the match.

History-making qualifier Karatsev reaches Australian Open semis

World number two Rafael Nadal beat old nemesis Fabio Fognini in a scrappy affair at the Australian Open Monday to reach his 43rd Grand Slam quarter-final.

The Spaniard, bidding for a first title at Melbourne Park since 2009, has yet to drop a set and kept the record intact against the fiery Italian, winning 6-3, 6-4, 6-2 on Rod Laver Arena.

It is the 13th time he has made the last eight in Australia, moving to joint third on the all-time list behind only Roger Federer (15) and John Newcombe (14).&nbsp;

The result keeps him on track to meet top seed Novak Djokovic in the final, with the Serb, who is carrying an abdominal injury, into his 12th quarter-final after seeing off the threat of Milos Raonic on Sunday evening.

"Happy to be in the quarter-final, positive start,"&nbsp;&nbsp;said Nadal, who is chasing his 21st major title and sole ownership of the men's record, which he currently shares with Federer.

"When you play round of 16 against a great player like Fabio they are always fighting. You can't expect to go on court and not have some problems facing these types of players."

Next up is either fifth seed Stefanos Tsitsipas or ninth seed Matteo Berrettini, who play later Monday, with the Spaniard enjoying a stellar record against both.

Nadal owned a 12-4 advantage over flamboyant Fognini dating back to 2013 coming into the clash and, despite some lower back tightness, he looked sharp.&nbsp;

But it wasn't vintage tennis from the 34-year-old.

He didn't serve at his best but returned well, creating 19 break points chances, although he only put away six of them, with just 24 winners to the Italian's 32.

Nadal quickly raced to a 3-0 lead in the first set after hitting several stunning winners.

But the 33-year-old Italian is a fighter and gathered himself, breaking back before Nadal immediately broke again.

The Italian saved three sets points, but his resistence finally crumbled after 46 minutes.

The pair won their serves through the opening games of the second set until Fognini surprisingly made a move, breaking for 4-2 when Nadal fluffed a forehand from the baseline.

Both players were struggling on serve with Nadal earning five break points in the next game, finally converting and then saving three on his own service game.

But as Fognini's error-count began creeping up, Nadal broke once more and made no mistake to wrap up the set.

He accelerated in the third set as Fognini faded, lacking the fight shown in the first two sets as Nadal put his foot down and sprinted to the finish line.

World number two Rafael Nadal beat old nemesis Fabio Fognini in a scrappy affair at the Australian Open Monday to reach his 43rd Grand Slam quarter-final. The Spaniard, bidding for a first title at Melbourne Park since 2009, has yet to drop a set and kept the record intact against the fiery Italian, winning 6-3, 6-4, 6-2 on Rod Laver Arena.

World number two Rafael Nadal beat old nemesis Fabio Fognini in a scrappy affair at the Australian Open Monday to reach his 43rd Grand Slam quarter-final. The Spaniard, bidding for a first title at Melbourne Park since 2009, has yet to drop a set and kept the record intact against the fiery Italian, winning 6-3, 6-4, 6-2 on Rod Laver Arena. It is the 13th time he has made the last eight in Australia, moving to joint third on the all-time list behind only Roger Federer (15) and John Newcombe (14). The result keeps him on track to meet top seed Novak Djokovic in the final, with the Serb, who is carrying an abdominal injury, into his 12th quarter-final after seeing off the threat of Milos Raonic on Sunday evening. "Happy to be in the quarter-final, positive start," said Nadal, who is chasing his 21st major title and sole ownership of the men's record, which he currently shares with Federer. "When you play round of 16 against a great player like Fabio they are always fighting. You can't expect to go on court and not have some problems facing these types of players." Next up is either fifth seed Stefanos Tsitsipas or ninth seed Matteo Berrettini, who play later Monday, with the Spaniard enjoying a stellar record against both. Nadal owned a 12-4 advantage over flamboyant Fognini dating back to 2013 coming into the clash and, despite some lower back tightness, he looked sharp. But it wasn't vintage tennis from the 34-year-old. He didn't serve at his best but returned well, creating 19 break points chances, although he only put away six of them, with just 24 winners to the Italian's 32. Nadal quickly raced to a 3-0 lead in the first set after hitting several stunning winners. But the 33-year-old Italian is a fighter and gathered himself, breaking back before Nadal immediately broke again. The Italian saved three sets points, but his resistence finally crumbled after 46 minutes. The pair won their serves through the opening games of the second set until Fognini surprisingly made a move, breaking for 4-2 when Nadal fluffed a forehand from the baseline. Both players were struggling on serve with Nadal earning five break points in the next game, finally converting and then saving three on his own service game. But as Fognini's error-count began creeping up, Nadal broke once more and made no mistake to wrap up the set. He accelerated in the third set as Fognini faded, lacking the fight shown in the first two sets as Nadal put his foot down and sprinted to the finish line.

Nadal beats Fognini to reach 43rd Slam quarter-final

Novak Djokovic says it's a "gamble" to keep playing the Australian Open and his abdominal injury could have an impact on the rest of his season, but the world number one is prepared to take the risk.

The Serbian eight-time champion sustained a "muscle tear" during a thrilling five-setter against Taylor Fritz on Friday.

He didn't train the following day but took to Rod Laver Arena Sunday evening dosed up on painkillers to see off the threat posed by big-serving Canadian Milos Raonic over four sets and make the quarter-finals.

Djokovic said the pain was "bearable" and he "somehow managed to find a way and win".

But he is not planning to train again on Monday, instead working on his recovery ahead of his last-eight clash with sixth seed Alexander Zverev.

"I mean, it's kind of a gamble, that's what the medical team told me. It's really unpredictable, you can't know what's going to happen with you once you're on the court," he said.&nbsp;

"You're not gonna save yourself or think about going for that point or this shot or that shot. It just pulls you. It's normal. Playing at this level, you just want to give it your all.&nbsp;

"It could cause much more damage than it is at the moment, but also could go in a good direction."

The 33-year-old refused to say what exactly the problem was, although his abdomen was strapped against Raonic and he said after the Fritz clash that was it "a tear of the muscle".

<h2>- 'There is always a risk' -</h2>

"I know what it is, but I don't want to talk about it now. I'm still in the tournament," he said, conscious that he does not want to give Zverev any extra ammunition to target him.

"I hope you guys understand that. I don't want to speculate too much about it."

Djokovic's win against Raonic was his 300th at a Slam, only the second player in history to reach the mark after Roger Federer, who has 362.&nbsp;

It kept him on track for an 18th Grand Slam title in his bid to close in on the 20 held by the Swiss great and Rafael Nadal.

His drive for more Slam crowns is the reason he hasn't pulled out, making clear that if it was any tournament other than a Grand Slam he would have withdrawn.

But playing on could mean he faces a period on the sidelines after Melbourne to recover.&nbsp;

"I have talked a lot with my own medical team and also the medical team of Tennis Australia -- Australian Open," he said.&nbsp;

"They all share the opinion that there is a slight, very slight, slim chance that I will make a significant damage that would take me out of the tour for whatever, some extended period of time.

"So, yes, there is always a risk that the injury will get worse, but they don't think it's going to be very significantly worse that it's going to jeopardise my entire season.

"So it will jeopardise, depending on how I go here, certain tournaments that are coming after Australian Open that I was maybe thinking to play."

Novak Djokovic says it's a "gamble" to keep playing the Australian Open and his abdominal injury could have an impact on the rest of his season, but the world number one is prepared to take the risk.

Novak Djokovic says it's a "gamble" to keep playing the Australian Open and his abdominal injury could have an impact on the rest of his season, but the world number one is prepared to take the risk. The Serbian eight-time champion sustained a "muscle tear" during a thrilling five-setter against Taylor Fritz on Friday. He didn't train the following day but took to Rod Laver Arena Sunday evening dosed up on painkillers to see off the threat posed by big-serving Canadian Milos Raonic over four sets and make the quarter-finals. Djokovic said the pain was "bearable" and he "somehow managed to find a way and win". But he is not planning to train again on Monday, instead working on his recovery ahead of his last-eight clash with sixth seed Alexander Zverev. "I mean, it's kind of a gamble, that's what the medical team told me. It's really unpredictable, you can't know what's going to happen with you once you're on the court," he said. "You're not gonna save yourself or think about going for that point or this shot or that shot. It just pulls you. It's normal. Playing at this level, you just want to give it your all. "It could cause much more damage than it is at the moment, but also could go in a good direction." The 33-year-old refused to say what exactly the problem was, although his abdomen was strapped against Raonic and he said after the Fritz clash that was it "a tear of the muscle". - 'There is always a risk' - "I know what it is, but I don't want to talk about it now. I'm still in the tournament," he said, conscious that he does not want to give Zverev any extra ammunition to target him. "I hope you guys understand that. I don't want to speculate too much about it." Djokovic's win against Raonic was his 300th at a Slam, only the second player in history to reach the mark after Roger Federer, who has 362. It kept him on track for an 18th Grand Slam title in his bid to close in on the 20 held by the Swiss great and Rafael Nadal. His drive for more Slam crowns is the reason he hasn't pulled out, making clear that if it was any tournament other than a Grand Slam he would have withdrawn. But playing on could mean he faces a period on the sidelines after Melbourne to recover. "I have talked a lot with my own medical team and also the medical team of Tennis Australia -- Australian Open," he said. "They all share the opinion that there is a slight, very slight, slim chance that I will make a significant damage that would take me out of the tour for whatever, some extended period of time. "So, yes, there is always a risk that the injury will get worse, but they don't think it's going to be very significantly worse that it's going to jeopardise my entire season. "So it will jeopardise, depending on how I go here, certain tournaments that are coming after Australian Open that I was maybe thinking to play."

Pain game: Injured Djokovic 'gambles' to play on at Australian Open

Fourth-seed Daniil Medvedev extended his win streak to 18 matches Monday when he took just 89 minutes to blow away Mackenzie McDonald 6-4, 6-2, 6-3 and reach the quarter-finals of the Australian Open.

The world number 192 from the United States&nbsp;broke the Russian's serve at 5-2 down in the first set but that was his only highlight.

"It was a great match," said Medvedev. "I was feeling great, I mean the only time I lost serve was in the first set."

Medvedev is into his first quarter-final at the Australian Open where he will play either countryman and ATP Cup-winning team-mate Andrey Rublev or Norway's Casper Rudd who play later Monday.

"I'm going to be rooting for Andrey because if he wins it's got to be at least one Russian in the semi-final," said Medvedev.

"Casper is a great opponent so I'm going to watch the match, enjoy it, and then prepare for my next opponent."

Medvedev's best Grand Slam performance to date was reaching the final at the 2019 US Open.

His win streak dates back to November and included titles at the Paris 1000, the ATP Finals in London and the ATP Cup.

Fourth-seed Daniil Medvedev extended his win streak to 18 matches Monday when he took just 89 minutes to blow away Mackenzie McDonald 6-4, 6-2, 6-3 and reach the quarter-finals of the Australian Open.

Fourth-seed Daniil Medvedev extended his win streak to 18 matches Monday when he took just 89 minutes to blow away Mackenzie McDonald 6-4, 6-2, 6-3 and reach the quarter-finals of the Australian Open. The world number 192 from the United States broke the Russian's serve at 5-2 down in the first set but that was his only highlight. "It was a great match," said Medvedev. "I was feeling great, I mean the only time I lost serve was in the first set." Medvedev is into his first quarter-final at the Australian Open where he will play either countryman and ATP Cup-winning team-mate Andrey Rublev or Norway's Casper Rudd who play later Monday. "I'm going to be rooting for Andrey because if he wins it's got to be at least one Russian in the semi-final," said Medvedev. "Casper is a great opponent so I'm going to watch the match, enjoy it, and then prepare for my next opponent." Medvedev's best Grand Slam performance to date was reaching the final at the 2019 US Open. His win streak dates back to November and included titles at the Paris 1000, the ATP Finals in London and the ATP Cup.

Medvedev into Open quarters as he extends streak to 18

World number one Ashleigh Barty declared Monday she's "not done yet" after storming&nbsp;into the Australian Open quarter-finals to raise hopes of a first home winner in 43 years.

The Australian's&nbsp;defensive mastery flummoxed big-hitting Shelby Rogers in her 6-3, 6-4 victory in one hour and 11 minutes in the fourth round at a crowdless Rod Laver Arena.

Barty, who is aiming to become the first Australian champion since Chris O'Neil in 1978, plays 25th seed Karolina Muchova in the quarter-finals after the Czech beat 18th seed Elise Mertens 7-6 (7/5), 7-5.&nbsp;

The 24-year-old reached the quarter-final of her home Slam for the third straight year, but remained unsatisfied.&nbsp;

"We're not done yet," Barty said when asked how she felt about reaching the final eight.&nbsp;&nbsp;

"If we had looked at the way we were preparing during our pre-season, to have the start that we have had so far is really encouraging, but certainly not satisfied with where we're at the moment.

"We will keep chipping away and keep trying to do the right things to progress as far as we can."

Australian expectations are rising for&nbsp;Barty, whose side of the draw has opened up with the early exits of defending champion Sofia Kenin, world number five Elina Svitolina and world number six Karolina Pliskova.&nbsp;

American Jennifer Brady is the next highest seed in Barty's bracket at 22.&nbsp;

She, however, was wary of 24-year-old Muchova, who made an impression on her during their third round clash at the 2018 US Open which Barty won in straight sets.&nbsp;&nbsp;

"I remember that match in New York, coming off the court and saying to (coach Craig Tyzzer)...'Karolina, she can play, she's a hell of a player'," she said of her sole match against Muchova.&nbsp;&nbsp;

"I know she's got the ability to manoeuvre the ball all around the court, play with variety, play with shape."

The 2019 French Open champion, having not played last year after February due to the pandemic, is rounding into peak form and successfully became the "aggressor" against Rogers, who she nearly lost to last week in the Yarra Valley Classic quarter-finals.

Barty, who has been carrying a niggle to her heavily strapped left thigh, moved smoothly and counter-attacked superbly to thwart the in-form American.

"It was important for me to serve well and try and bring it on my terms as often as possible," she said.&nbsp;&nbsp;

"I think I have learnt a lot about myself over the past 12 months.

"I'm just extremely grateful that I've got another opportunity to do something that I love... on the biggest stage for us as Aussies playing tennis."

World number one Ashleigh Barty declared Monday she's "not done yet" after storming into the Australian Open quarter-finals to raise hopes of a first home winner in 43 years.

World number one Ashleigh Barty declared Monday she's "not done yet" after storming into the Australian Open quarter-finals to raise hopes of a first home winner in 43 years. The Australian's defensive mastery flummoxed big-hitting Shelby Rogers in her 6-3, 6-4 victory in one hour and 11 minutes in the fourth round at a crowdless Rod Laver Arena. Barty, who is aiming to become the first Australian champion since Chris O'Neil in 1978, plays 25th seed Karolina Muchova in the quarter-finals after the Czech beat 18th seed Elise Mertens 7-6 (7/5), 7-5. The 24-year-old reached the quarter-final of her home Slam for the third straight year, but remained unsatisfied. "We're not done yet," Barty said when asked how she felt about reaching the final eight. "If we had looked at the way we were preparing during our pre-season, to have the start that we have had so far is really encouraging, but certainly not satisfied with where we're at the moment. "We will keep chipping away and keep trying to do the right things to progress as far as we can." Australian expectations are rising for Barty, whose side of the draw has opened up with the early exits of defending champion Sofia Kenin, world number five Elina Svitolina and world number six Karolina Pliskova. American Jennifer Brady is the next highest seed in Barty's bracket at 22. She, however, was wary of 24-year-old Muchova, who made an impression on her during their third round clash at the 2018 US Open which Barty won in straight sets. "I remember that match in New York, coming off the court and saying to (coach Craig Tyzzer)...'Karolina, she can play, she's a hell of a player'," she said of her sole match against Muchova. "I know she's got the ability to manoeuvre the ball all around the court, play with variety, play with shape." The 2019 French Open champion, having not played last year after February due to the pandemic, is rounding into peak form and successfully became the "aggressor" against Rogers, who she nearly lost to last week in the Yarra Valley Classic quarter-finals. Barty, who has been carrying a niggle to her heavily strapped left thigh, moved smoothly and counter-attacked superbly to thwart the in-form American. "It was important for me to serve well and try and bring it on my terms as often as possible," she said. "I think I have learnt a lot about myself over the past 12 months. "I'm just extremely grateful that I've got another opportunity to do something that I love... on the biggest stage for us as Aussies playing tennis."

'Not done yet': Barty storms into Australian Open quarters

Naomi Osaka saved two match points as she battled back from the brink to reach the quarter-finals of the Australian Open with a 4-6 6-4 7-5 victory over in-form Garbine Muguruza on Sunday.

The Japanese third seed was chasing the match from the start on Rod Laver Arena and looked defeat square in the face in the third set when the Spanish 14th seed had two opportunities to win the match with a break of serve.

Osaka saved both match points -- the first with an ace -- to turn the tide in the contest decisively and Muguruza exited the tournament a couple of games later after failing to win a point in her final service.

Fans remained absent from Melbourne Park for a second day because of the state of Victoria's coronavirus lockdown and Osaka's victory was greeted with taped applause piped into the stadium.

"I'm tired right now, that was tough," said Osaka, who mixed 40 winners with 36 unforced errors over the contest.

"Today I feel like I was intimidated, she is playing well. I had to go within myself, I couldn't play short balls to her because she'd put them away."

Next up for Osaka is an all-Asian quarter-final against unorthodox 35-year-old Hsieh Su-wei of Taiwan, who will be playing in the last eight of a Grand Slam for the first time.

"I'm not looking forward to it, every time we have played it's three sets," Osaka added. "It's fun when I'm not really angry. When I play her I just have to expect everything."

Although Osaka had never played Muguruza before, she had perhaps a better idea of what to expect from the former French Open and Wimbledon champion.

Muguruza, a finalist here last year, had conceded only 10 games in reaching the fourth round and continued that rich vein of form into Sunday's match.

Serving solidly and pouncing on anything short of perfect that flew off Osaka's racket, she grabbed what looked to be a crucial break of serve for 5-3 in the third set by steering a lovely backhand winner down the line.

Muguruza rued her missed opportunity but said she was happy overall with the start to her season.

"It's never a good feeling losing a match that you feel you could have changed in one second," the 27-year-old said.

"But I left the court with a good feeling, very good feeling about this tournament in general."

Naomi Osaka saved two match points as she battled back from the brink to reach the quarter-finals of the Australian Open with a 4-6 6-4 7-5 victory over in-form Garbine Muguruza on Sunday.

Naomi Osaka saved two match points as she battled back from the brink to reach the quarter-finals of the Australian Open with a 4-6 6-4 7-5 victory over in-form Garbine Muguruza on Sunday. The Japanese third seed was chasing the match from the start on Rod Laver Arena and looked defeat square in the face in the third set when the Spanish 14th seed had two opportunities to win the match with a break of serve. Osaka saved both match points -- the first with an ace -- to turn the tide in the contest decisively and Muguruza exited the tournament a couple of games later after failing to win a point in her final service. Fans remained absent from Melbourne Park for a second day because of the state of Victoria's coronavirus lockdown and Osaka's victory was greeted with taped applause piped into the stadium. "I'm tired right now, that was tough," said Osaka, who mixed 40 winners with 36 unforced errors over the contest. "Today I feel like I was intimidated, she is playing well. I had to go within myself, I couldn't play short balls to her because she'd put them away." Next up for Osaka is an all-Asian quarter-final against unorthodox 35-year-old Hsieh Su-wei of Taiwan, who will be playing in the last eight of a Grand Slam for the first time. "I'm not looking forward to it, every time we have played it's three sets," Osaka added. "It's fun when I'm not really angry. When I play her I just have to expect everything." Although Osaka had never played Muguruza before, she had perhaps a better idea of what to expect from the former French Open and Wimbledon champion. Muguruza, a finalist here last year, had conceded only 10 games in reaching the fourth round and continued that rich vein of form into Sunday's match. Serving solidly and pouncing on anything short of perfect that flew off Osaka's racket, she grabbed what looked to be a crucial break of serve for 5-3 in the third set by steering a lovely backhand winner down the line. Muguruza rued her missed opportunity but said she was happy overall with the start to her season. "It's never a good feeling losing a match that you feel you could have changed in one second," the 27-year-old said. "But I left the court with a good feeling, very good feeling about this tournament in general."

Australian Open: Osaka back from the brink to reach quarter-finals

US Open Champion Dominic Thiem crashed out of the Australian Open on Sunday after losing to Bulgarian Grigor Dimitrov at Rod Laver Arena. The Bulgarian defeated the Austrian 6-4 6-4 6-0 in the fourth round clash.&nbsp;

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Third-seeded Thiem never seemed to provide any sorts of challenges to Dimitrov as the Bulgarian got an easy win in straight sets. Thiem defeated Nick Kyrgios in a five-set thriller in the third round on Friday but failed to stage a comeback in this match.&nbsp;

The first two sets followed the same pattern with Thiem taking an early 3-1 lead only for 18th seed Dimitrov to charge back at him and clinch the set.

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The Austrian, losing finalist here last year, was unable to rouse himself in the third set and Dimitrov sealed a last-eight meeting with Russian qualifier Aslan Karatsev after little more than two hours on court.

Earlier, Japanese ace Naomi Osaka escaped a defeat against in-form Garbine Muguruza as she beat the Spanish player 4-6 6-4 7-5 on Sunday at the Rod Laver Arena.

US Open Champion Dominic Thiem crashed out of the Australian Open on Sunday after losing to Bulgarian Grigor Dimitrov at Rod Laver Arena. The Bulgarian defeated the Austrian 6-4 6-4 6-0 in the fourth round clash.

US Open Champion Dominic Thiem crashed out of the Australian Open on Sunday after losing to Bulgarian Grigor Dimitrov at Rod Laver Arena. The Bulgarian defeated the Austrian 6-4 6-4 6-0 in the fourth round clash. ALSO READ: Australian Open: Osaka back from the brink to reach quarter-finals Third-seeded Thiem never seemed to provide any sorts of challenges to Dimitrov as the Bulgarian got an easy win in straight sets. Thiem defeated Nick Kyrgios in a five-set thriller in the third round on Friday but failed to stage a comeback in this match. The first two sets followed the same pattern with Thiem taking an early 3-1 lead only for 18th seed Dimitrov to charge back at him and clinch the set. ALSO READ: From Djokovic to Nadal: Five men's singles players to watch at the Australian Open 2021 The Austrian, losing finalist here last year, was unable to rouse himself in the third set and Dimitrov sealed a last-eight meeting with Russian qualifier Aslan Karatsev after little more than two hours on court. Earlier, Japanese ace Naomi Osaka escaped a defeat against in-form Garbine Muguruza as she beat the Spanish player 4-6 6-4 7-5 on Sunday at the Rod Laver Arena.

Third seed Dominic Thiem crashes out of Australian Open

Karolina Pliskova said she never got into her comfort zone on Saturday as the sixth seed exited the Australian Open following a 7-5 7-5 third-round defeat by Czech compatriot Karolina Muchova at Rod Laver Arena.

Pliskova's frustrations boiled over in the first set as she received a code violation for racket abuse and was then handed a point deduction for smashing another racket in the tunnel between sets.

Pliskova told a news conference she had been a little bit surprised at the second warning but that it had had a positive impact on her game.

"I think actually it helped me in the second set because I was (annoyed) so I started to play well," she said.

After losing the opening set Pliskova raced to a 5-0 lead in the second before the wheels came off, allowing Muchova to complete the victory and reach the fourth round in Melbourne for the first time.

"There was long game for 5-1 and 6-0. I thought she just played little bit better at this moment," Pliskova added. "Of course, I played quite amazing to 5-0, but then it's quite tough to hold this level.

"I had chances ... on my serve, I just could do so many things better today. I don't think my game is the top for sure. I don't want to be too sarcastic and too negative because I just lost.

"The feeling was not great from any of my matches here. I think overall, too many mistakes, too much panic in the rallies. I don't know if it's just not having any matches much lately. I don't feel like safe with anything I was doing on the court."

Muchova, the world number 27, next faces either Switzerland's Belinda Bencic or Elise Mertens of Belgium for a place in the quarter-finals.

Karolina Pliskova said she never got into her comfort zone on Saturday as the sixth seed exited the Australian Open following a 7-5 7-5 third-round defeat by Czech compatriot Karolina Muchova at Rod Laver Arena.

Karolina Pliskova said she never got into her comfort zone on Saturday as the sixth seed exited the Australian Open following a 7-5 7-5 third-round defeat by Czech compatriot Karolina Muchova at Rod Laver Arena. Pliskova's frustrations boiled over in the first set as she received a code violation for racket abuse and was then handed a point deduction for smashing another racket in the tunnel between sets. Pliskova told a news conference she had been a little bit surprised at the second warning but that it had had a positive impact on her game. "I think actually it helped me in the second set because I was (annoyed) so I started to play well," she said. After losing the opening set Pliskova raced to a 5-0 lead in the second before the wheels came off, allowing Muchova to complete the victory and reach the fourth round in Melbourne for the first time. "There was long game for 5-1 and 6-0. I thought she just played little bit better at this moment," Pliskova added. "Of course, I played quite amazing to 5-0, but then it's quite tough to hold this level. "I had chances ... on my serve, I just could do so many things better today. I don't think my game is the top for sure. I don't want to be too sarcastic and too negative because I just lost. "The feeling was not great from any of my matches here. I think overall, too many mistakes, too much panic in the rallies. I don't know if it's just not having any matches much lately. I don't feel like safe with anything I was doing on the court." Muchova, the world number 27, next faces either Switzerland's Belinda Bencic or Elise Mertens of Belgium for a place in the quarter-finals.

Pliskova points to ring rust as Czech exits in third round

World number one Novak Djokovic missed his Saturday's training session as the Serb waits for his scans after he slipped during the third set of Friday's third-round match against Taylor Fritz and disappeared off Rod Laver Arena for treatment.

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Novak Djokovic described it as a "muscle tear" on his right side required further attention on the injury during the third set before he went on to script a five-set win and set up a clash against Milos Raonic on Sunday.

The injury casts cloud on Djokovic's campaign and the defending champion will have to undergo scans before any decision is taken.&nbsp;

However, Australian Open Chief Executive Craig Tiley was confident that Novak will overcome his injury and compete in the fourth round of the Grand Slam.

"We'll see him. He's resilient, he's tough," Tiley told Australian broadcaster Channel Nine.

"He'll wake up today and he'll figure out what it is and he'll go and get the appropriate treatment. The way he was, those two sets, I was pretty surprised.

"But I've seen him play here, this is his court, he gets comfortable on it and he just picks his game up and up and he's that good."

The Serbian tennis ace is a record eight-time Australian Open winner, and was eyeing a ninth title this year. Djokovic has won 17 Grand Slams in total.

World number one Novak Djokovic missed his Saturday's training session as the Serb waits for his scans after he slipped during the third set of Friday's third-round match against Taylor Fritz and disappeared off Rod Laver Arena for treatment.

World number one Novak Djokovic missed his Saturday's training session as the Serb waits for his scans after he slipped during the third set of Friday's third-round match against Taylor Fritz and disappeared off Rod Laver Arena for treatment. ALSO READ: Pliskova points to ring rust as Czech exits in third round Novak Djokovic described it as a "muscle tear" on his right side required further attention on the injury during the third set before he went on to script a five-set win and set up a clash against Milos Raonic on Sunday. The injury casts cloud on Djokovic's campaign and the defending champion will have to undergo scans before any decision is taken. However, Australian Open Chief Executive Craig Tiley was confident that Novak will overcome his injury and compete in the fourth round of the Grand Slam. "We'll see him. He's resilient, he's tough," Tiley told Australian broadcaster Channel Nine. "He'll wake up today and he'll figure out what it is and he'll go and get the appropriate treatment. The way he was, those two sets, I was pretty surprised. "But I've seen him play here, this is his court, he gets comfortable on it and he just picks his game up and up and he's that good." The Serbian tennis ace is a record eight-time Australian Open winner, and was eyeing a ninth title this year. Djokovic has won 17 Grand Slams in total.

Australian Open: Serb ace Novak Djokovic skips training as he awaits scan results

Birthday boy Daniil Medvedev added another win to his red-hot streak Thursday as the Russian fourth seed demolished Roberto Carballes Baena to ease into the Australian Open third round.

Medvedev, who turned 25 on Thursday, powered past the Spaniard 6-2, 7-5, 6-1 on John Cain Arena for his 16th straight win dating back to November.

Along the way, the world number four has won the Paris 1000, the ATP Finals in London and the ATP Cup with Russia in the lead-up to the opening Grand Slam of the year.

"Sometimes in tennis, as in other sport, you just have the momentum and feel like you can do a lot of things," he said of his blistering form.&nbsp;

"Once you lose it it's tougher, so I'm just trying to keep it as much as possible.

"So far it has been working and hoping it won't stop for a long time."&nbsp;

He will next play Serbian 28th seed Filip Krajinovic, who eased past Spain's Pablo Andujar in four sets.

Medvedev's sizzling form makes him a serious contender to claim a maiden Grand Slam title and he was in fine touch against Carballes Baena, ranked 99.

He quickly took charge, returning well and dominating at the baseline and net to comfortably take he opening set.

The Russian was pressed harder in the second but that was as good as it got for Carballes Baena, who lost focus and was punished by a man at the top of his game.

Medvedev is bidding not only for a maiden Grand Slam title but to become only the third Russian man to win a major after Yevgeny Kafelnikov and Marat Safin.

He has been knocking on the door for some time, reaching the 2019 US Open final -- where he lost in five sets to Rafael Nadal -- and the last four in New York in 2020.

But he has yet to go beyond the round of 16 at Melbourne Park.

Birthday boy Daniil Medvedev added another win to his red-hot streak Thursday as the Russian fourth seed demolished Roberto Carballes Baena to ease into the Australian Open third round.

Birthday boy Daniil Medvedev added another win to his red-hot streak Thursday as the Russian fourth seed demolished Roberto Carballes Baena to ease into the Australian Open third round. Medvedev, who turned 25 on Thursday, powered past the Spaniard 6-2, 7-5, 6-1 on John Cain Arena for his 16th straight win dating back to November. Along the way, the world number four has won the Paris 1000, the ATP Finals in London and the ATP Cup with Russia in the lead-up to the opening Grand Slam of the year. "Sometimes in tennis, as in other sport, you just have the momentum and feel like you can do a lot of things," he said of his blistering form. "Once you lose it it's tougher, so I'm just trying to keep it as much as possible. "So far it has been working and hoping it won't stop for a long time." He will next play Serbian 28th seed Filip Krajinovic, who eased past Spain's Pablo Andujar in four sets. Medvedev's sizzling form makes him a serious contender to claim a maiden Grand Slam title and he was in fine touch against Carballes Baena, ranked 99. He quickly took charge, returning well and dominating at the baseline and net to comfortably take he opening set. The Russian was pressed harder in the second but that was as good as it got for Carballes Baena, who lost focus and was punished by a man at the top of his game. Medvedev is bidding not only for a maiden Grand Slam title but to become only the third Russian man to win a major after Yevgeny Kafelnikov and Marat Safin. He has been knocking on the door for some time, reaching the 2019 US Open final -- where he lost in five sets to Rafael Nadal -- and the last four in New York in 2020. But he has yet to go beyond the round of 16 at Melbourne Park.

Medvedev celebrates birthday with 16th straight win

Serena Williams strolled into the third round of the Australian Open on Wednesday but former US Open champion Bianca Andreescu's emotional comeback from 15 months out ended at the hands of Taiwanese veteran Hsieh Su-wei.

Williams, 39, continued her quest to equal Margaret Court's all-time mark of 24 Grand Slams with a 6-3, 6-0 romp past 99th-ranked Serbian Nina Stojanovic in just 69 minutes on Rod Laver Arena.

"l wasn't thinking as much in the second (set), as I was in the first," said Williams, who hit 27 winners in her 101st Australian Open match while again sporting her unique, one-legged catsuit inspired by track legend 'Flo-Jo'.&nbsp;

"I'm here to have fun and it's great to be playing in front of a crowd."&nbsp;

But eighth seed Andreescu, playing her first tournament since October 2019 after a serious knee injury, could never cope with Hsieh's quirky range of shots and lost 6-3, 6-2 in one hour 23 minutes.&nbsp;&nbsp;

"You need to find a way to get through and the crowd helped me fight," said Hsieh after beating the Canadian, who was coming off a draining three-setter against Mihaela Buzarnescu in the first round.&nbsp;

Kvitova, the former Wimbledon champion and Melbourne runner-up in 2019, committed 44 unforced errors in her 6-4, 1-6, 6-1 defeat to Romania's Sorana Cirstea.

But seventh seed Aryna Sabalenka was little troubled in going&nbsp;through 7-6 (7/5), 6-3 against Russia's Daria Kasatkina.

In the men's draw, eighth seed Diego Schwartzmann of Argentina wasted little time in reaching the last 32, brushing aside Frenchman Alexandre Muller 6-2, 6-0, 6-3 in an hour and 32 minutes on 1573 Arena.

<h2>- Djokovic affair -</h2>

Later Novak Djokovic will look to continue his Melbourne Park "love affair" and march towards a record-extending ninth title against young American Frances Tiafoe.

Djokovic demolished France's Jeremy Chardy 6-3, 6-1, 6-2 on Monday as the year's first Grand Slam kicked off three weeks late because of the coronavirus pandemic.

"It is an ongoing love affair between me and this court, the Rod Laver Arena," said Djokovic after his opening win.

US Open champion Naomi Osaka will headline the evening session against France's former world number four Caroline Garcia, with the Japanese star seeking her second Australian Open title in three years.

Germany's volatile US Open finalist Alexander Zverev will close out the night session against America's Maxime Cressy.

The fifth seed is known for a short fuse and it showed on Monday as he smashed a racquet during a 6-7 (8/10), 7-6 (7/5), 6-3, 6-2 win against another Marcos Giron.

The tantrum-prone Nick Kyrgios could also provide fireworks out on his favourite John Cain Arena against France's 29th seed Ugo Humbert.

Austrian third seed and US Open champion Dominic Thiem, last year's runner-up to Djokovic, is the highlight in the afternoon session on Margaret Court Arena against Germany's 70th-ranked Dominik Koepfer.

Women's second seed Simona Halep appeared to have overcome a lower back injury in 6-2, 6-1 romp past wildcard Lizette Cabrera on Monday and faces another Australian, Ajla Tomljanovic, in the night session.

Serena Williams strolled into the third round of the Australian Open on Wednesday but former US Open champion Bianca Andreescu's emotional comeback from 15 months out ended at the hands of Taiwanese veteran Hsieh Su-wei.

Serena Williams strolled into the third round of the Australian Open on Wednesday but former US Open champion Bianca Andreescu's emotional comeback from 15 months out ended at the hands of Taiwanese veteran Hsieh Su-wei. Williams, 39, continued her quest to equal Margaret Court's all-time mark of 24 Grand Slams with a 6-3, 6-0 romp past 99th-ranked Serbian Nina Stojanovic in just 69 minutes on Rod Laver Arena. "l wasn't thinking as much in the second (set), as I was in the first," said Williams, who hit 27 winners in her 101st Australian Open match while again sporting her unique, one-legged catsuit inspired by track legend 'Flo-Jo'. "I'm here to have fun and it's great to be playing in front of a crowd." But eighth seed Andreescu, playing her first tournament since October 2019 after a serious knee injury, could never cope with Hsieh's quirky range of shots and lost 6-3, 6-2 in one hour 23 minutes. "You need to find a way to get through and the crowd helped me fight," said Hsieh after beating the Canadian, who was coming off a draining three-setter against Mihaela Buzarnescu in the first round. Kvitova, the former Wimbledon champion and Melbourne runner-up in 2019, committed 44 unforced errors in her 6-4, 1-6, 6-1 defeat to Romania's Sorana Cirstea. But seventh seed Aryna Sabalenka was little troubled in going through 7-6 (7/5), 6-3 against Russia's Daria Kasatkina. In the men's draw, eighth seed Diego Schwartzmann of Argentina wasted little time in reaching the last 32, brushing aside Frenchman Alexandre Muller 6-2, 6-0, 6-3 in an hour and 32 minutes on 1573 Arena. - Djokovic affair - Later Novak Djokovic will look to continue his Melbourne Park "love affair" and march towards a record-extending ninth title against young American Frances Tiafoe. Djokovic demolished France's Jeremy Chardy 6-3, 6-1, 6-2 on Monday as the year's first Grand Slam kicked off three weeks late because of the coronavirus pandemic. "It is an ongoing love affair between me and this court, the Rod Laver Arena," said Djokovic after his opening win. US Open champion Naomi Osaka will headline the evening session against France's former world number four Caroline Garcia, with the Japanese star seeking her second Australian Open title in three years. Germany's volatile US Open finalist Alexander Zverev will close out the night session against America's Maxime Cressy. The fifth seed is known for a short fuse and it showed on Monday as he smashed a racquet during a 6-7 (8/10), 7-6 (7/5), 6-3, 6-2 win against another Marcos Giron. The tantrum-prone Nick Kyrgios could also provide fireworks out on his favourite John Cain Arena against France's 29th seed Ugo Humbert. Austrian third seed and US Open champion Dominic Thiem, last year's runner-up to Djokovic, is the highlight in the afternoon session on Margaret Court Arena against Germany's 70th-ranked Dominik Koepfer. Women's second seed Simona Halep appeared to have overcome a lower back injury in 6-2, 6-1 romp past wildcard Lizette Cabrera on Monday and faces another Australian, Ajla Tomljanovic, in the night session.

Serena sails on, Andreescu comeback halted as Kvitova falls

Rafael Nadal Tuesday said his back is still "not great" despite opening his campaign for a record 21st Grand Slam title with a routine straight-sets win.

The world number two pulled out of the ATP Cup last week with the niggle and said ahead of the Australian Open that he was "suffering".

He motored through his first-round clash against valiant Serb Laslo Djere with little drama, racing to a 6-3, 6-4, 6-1, victory under blue skies on Rod Laver Arena, but admitted he was still struggling.

"My back is not perfect, as I said a couple of days ago," said the Spaniard, whose only appearance this year had been an exhibition against Dominic Thiem in Adelaide 12 days ago, where he first experienced stiffness in his back.

"Every day that I'm able to go through, probably there are more chances to be better. That's the thing now.&nbsp;

"There is always a chance to improve, and that's why I'm here playing and fighting to try to get better and then give myself a chance."

The injury forced him to make changes in his service action against Djere, who didn't have the weapons to trouble the second seed despite Nadal being below par.

"Today it's not great. I needed to change a little bit the motion of my serve," he said.&nbsp;

"I need to go day-to-day and just try to stay positive. I'm trying to do all the things possible to be ready for compete -- that's what I came here for."

It was his first competitive match since the semi-finals of the ATP Finals in London on November 21.

Nadal raced to a 3-0 first-set lead and wrapped it up before a tougher set two as Djere raised his first serve percentage and got himself in the rallies, with Nadal saving three break points.

But the unrelenting Spaniard was never in jeopardy, dominating off his first serve and outlasting the 56th-ranked Serb on the long rallies.

"I wish him all the best for the rest of the season," Nadal said. "Laslo has a great story. I wish him the best of luck."&nbsp;

The 2009 champion, who has a history of back problems, is looking to edge ahead of Roger Federer in career Slam titles, with both men having 20 to their name.

But the king of clay has often laboured in vain on Melbourne's hardcourts, reaching five finals but only having the one title, falling in the quarter-finals last year to Dominic Thiem.

Nadal next plays either Serb veteran Viktor Troicki or qualifier Michael Mmoh and is on course to meet Greek rising star and fifth seed Stefanos Tsitsipas in the quarter-finals.

Rafael Nadal Tuesday said his back is still "not great" despite opening his campaign for a record 21st Grand Slam title with a routine straight-sets win. The world number two pulled out of the ATP Cup last week with the niggle and said ahead of the Australian Open that he was "suffering".

Rafael Nadal Tuesday said his back is still "not great" despite opening his campaign for a record 21st Grand Slam title with a routine straight-sets win. The world number two pulled out of the ATP Cup last week with the niggle and said ahead of the Australian Open that he was "suffering". He motored through his first-round clash against valiant Serb Laslo Djere with little drama, racing to a 6-3, 6-4, 6-1, victory under blue skies on Rod Laver Arena, but admitted he was still struggling. "My back is not perfect, as I said a couple of days ago," said the Spaniard, whose only appearance this year had been an exhibition against Dominic Thiem in Adelaide 12 days ago, where he first experienced stiffness in his back. "Every day that I'm able to go through, probably there are more chances to be better. That's the thing now. "There is always a chance to improve, and that's why I'm here playing and fighting to try to get better and then give myself a chance." The injury forced him to make changes in his service action against Djere, who didn't have the weapons to trouble the second seed despite Nadal being below par. "Today it's not great. I needed to change a little bit the motion of my serve," he said. "I need to go day-to-day and just try to stay positive. I'm trying to do all the things possible to be ready for compete -- that's what I came here for." It was his first competitive match since the semi-finals of the ATP Finals in London on November 21. Nadal raced to a 3-0 first-set lead and wrapped it up before a tougher set two as Djere raised his first serve percentage and got himself in the rallies, with Nadal saving three break points. But the unrelenting Spaniard was never in jeopardy, dominating off his first serve and outlasting the 56th-ranked Serb on the long rallies. "I wish him all the best for the rest of the season," Nadal said. "Laslo has a great story. I wish him the best of luck." The 2009 champion, who has a history of back problems, is looking to edge ahead of Roger Federer in career Slam titles, with both men having 20 to their name. But the king of clay has often laboured in vain on Melbourne's hardcourts, reaching five finals but only having the one title, falling in the quarter-finals last year to Dominic Thiem. Nadal next plays either Serb veteran Viktor Troicki or qualifier Michael Mmoh and is on course to meet Greek rising star and fifth seed Stefanos Tsitsipas in the quarter-finals.

'Not great' - Nadal cruises despite lingering back injury

Naomi Osaka said Venus Williams had an "aura" and Serena hailed her ageless sister as "such an inspiration" after the 40-year-old powered into the Australian Open second round Monday.

Williams, who played her first Australian Open in 1998, battled past fellow veteran Kirsten Flipkens 7-5, 6-2 on Margaret Court Arena in her 88th Grand Slam to ensure she lived to fight another day.

World number three Osaka, who also comfortably won, said the seven-time Grand Slam winner had long been a hero and she was amazed at her longevity.

"Ironically I actually interact with Venus more (than Serena)," she said after sweeping past Russia's Anastasia Pavlyuchenkova 6-1, 6-2.

"For me, I feel like I do talk about Serena a lot, but Venus is sort of the reason why Serena is where she is."

"Of course, I always love to pay homage to her," she added. I feel like whenever I see her, it's really amazing just to watch how much she loves tennis.

"I see her smiling so much nowadays, so it's really nice to see. She just has this aura of loving the sport and this infectious energy. I hope that I can learn a lot from her."

Sister Serena, who crushed Germany's Laura Siegemund 6-1, 6-1 in the first round at Melbourne Park as she aims for a record-equalling 24th Grand Slam title, has spent the past few weeks with Venus as her hitting partner.

"She's such an inspiration because she never gets frustrated about her situation, health-wise. She's always looking on the bright side. Then she works so hard. Yeah, she's been great," she said.

Williams was diagnosed with Sjogren's disease in 2011, a condition which leaves her weakened. She took up a vegan diet to stay competitive and combat the illness.

"It was so good to train with her. It was so good every day," added Serena.

"It's also very inspiring because she still pushes me on a level that no one's able to push me, so it was incredibly helpful."

Naomi Osaka said Venus Williams had an "aura" and Serena hailed her ageless sister as "such an inspiration" after the 40-year-old powered into the Australian Open second round Monday.

Naomi Osaka said Venus Williams had an "aura" and Serena hailed her ageless sister as "such an inspiration" after the 40-year-old powered into the Australian Open second round Monday. Williams, who played her first Australian Open in 1998, battled past fellow veteran Kirsten Flipkens 7-5, 6-2 on Margaret Court Arena in her 88th Grand Slam to ensure she lived to fight another day. World number three Osaka, who also comfortably won, said the seven-time Grand Slam winner had long been a hero and she was amazed at her longevity. "Ironically I actually interact with Venus more (than Serena)," she said after sweeping past Russia's Anastasia Pavlyuchenkova 6-1, 6-2. "For me, I feel like I do talk about Serena a lot, but Venus is sort of the reason why Serena is where she is." "Of course, I always love to pay homage to her," she added. I feel like whenever I see her, it's really amazing just to watch how much she loves tennis. "I see her smiling so much nowadays, so it's really nice to see. She just has this aura of loving the sport and this infectious energy. I hope that I can learn a lot from her." Sister Serena, who crushed Germany's Laura Siegemund 6-1, 6-1 in the first round at Melbourne Park as she aims for a record-equalling 24th Grand Slam title, has spent the past few weeks with Venus as her hitting partner. "She's such an inspiration because she never gets frustrated about her situation, health-wise. She's always looking on the bright side. Then she works so hard. Yeah, she's been great," she said. Williams was diagnosed with Sjogren's disease in 2011, a condition which leaves her weakened. She took up a vegan diet to stay competitive and combat the illness. "It was so good to train with her. It was so good every day," added Serena. "It's also very inspiring because she still pushes me on a level that no one's able to push me, so it was incredibly helpful."

Serena, Osaka pay homage to Venus after Open win

Serena Williams is "super confident" her injured shoulder will hold up for the Australian Open and says she feels more relaxed about the "burden" of bidding for a record-equalling 24th Grand Slam title. 
 
Williams, a seven-times champion at Melbourne Park, pulled out of the warmup Yarra Valley Classic on Friday, robbing the tournament of a marquee semi-final with world number one and home hero Ash Barty. 
 
The American great said she would have to manage her shoulder through the Australian Open but was feeling "pretty good". 
 
"I`ve gotten a lot of treatment already on my shoulder," Williams told reporters at Melbourne Park on Saturday. 
 
"But I`m super confident it`s going to be great. I`m feeling very confident, I think is a better word, and getting ready for hopefully the next two weeks." 
 
Williams, who opens her tournament against unseeded German Laura Siegemund, won the last of her 23 Grand Slam titles four years ago at Melbourne Park when in the early stages of pregnancy. 
 
Despite making four Grand Slam finals since motherhood, the 39-year-old remains one short of Margaret Court`s all-time record. 
 
"It`s definitely on my shoulders and on my mind," she said of the record. 
 
"I think it`s good to be on my mind. I think it`s a different burden, I should say, on my shoulders because I`m used to it now. It`s more relaxing I would like to say, yeah." 
 
Williams has beaten 51st-ranked Siegemund in both their previous matches, including the quarter-finals of last year`s Auckland Classic in the leadup to the 2020 Australian Open. 
 
"She has a different game," said Williams. 
 
"She mixes up the pace a lot. It will be a really good match for me to get in there early and play my best."

Serena Williams is "super confident" her injured shoulder will hold up for the Australian Open and says she feels more relaxed about the "burden" of bidding for a record-equalling 24th Grand Slam title.

Serena Williams is "super confident" her injured shoulder will hold up for the Australian Open and says she feels more relaxed about the "burden" of bidding for a record-equalling 24th Grand Slam title. Williams, a seven-times champion at Melbourne Park, pulled out of the warmup Yarra Valley Classic on Friday, robbing the tournament of a marquee semi-final with world number one and home hero Ash Barty. The American great said she would have to manage her shoulder through the Australian Open but was feeling "pretty good". "I`ve gotten a lot of treatment already on my shoulder," Williams told reporters at Melbourne Park on Saturday. "But I`m super confident it`s going to be great. I`m feeling very confident, I think is a better word, and getting ready for hopefully the next two weeks." Williams, who opens her tournament against unseeded German Laura Siegemund, won the last of her 23 Grand Slam titles four years ago at Melbourne Park when in the early stages of pregnancy. Despite making four Grand Slam finals since motherhood, the 39-year-old remains one short of Margaret Court`s all-time record. "It`s definitely on my shoulders and on my mind," she said of the record. "I think it`s good to be on my mind. I think it`s a different burden, I should say, on my shoulders because I`m used to it now. It`s more relaxing I would like to say, yeah." Williams has beaten 51st-ranked Siegemund in both their previous matches, including the quarter-finals of last year`s Auckland Classic in the leadup to the 2020 Australian Open. "She has a different game," said Williams. "She mixes up the pace a lot. It will be a really good match for me to get in there early and play my best."

Serena shrugs off shoulder issue, ''relaxed'' about Slam record bid

Nick Kyrgios' meltdowns during the tennis matches are known to all. However, the outspoken Aussie took it too far when he smashed his racquet and threw it in the stands while swearing during Friday's 6-3 6-4 defeat by Borna Coric in the Murray River Open at Melbourne Park.

ALSO READ:&nbsp;<a href="https://www.wionews.com/sports/nadal-continues-to-struggle-with-back-problem-ahead-of-australian-open-361402" hreflang="en">Nadal continues to struggle with back problem ahead of Australian Open</a>

The 25-year-old was warned for bad language and docked a point for unsportsmanlike conduct after the incident. Kyrgios was visibly in pain as he struggled with a left knee issue and needed treatment midway through the match at the Australian Open warm-up event.

<img alt="kk" data-entity-type="file" data-entity-uuid="aac6fd49-ec9a-4f06-8512-430cb5fbef4c" src="//cdn.wionews.com/sites/default/files/inline-images/Untitled%20design%20%283%29_91.jpg" />

"I can't serve without pain. When I land it feels unstable," local media quoted Kyrgios as telling a trainer between sets.

"I'll probably just play one more game. I'm serving at like 170(kph) instead of 220."

The Australian ace, who is playing his first tournament in a year due to COVID-19 pandemic, was warned by the chair umpire for swearing at 4-4 in the second set.

Kyrgios smashed his racquet after his serve was broken, he later threw it into the stands.&nbsp;

In the previous match, Nick needed assurances from a tournament supervisor that he would not be fined by the ATP for his behaviour in the last round against Harry Bourchier before agreeing to play on. 
&nbsp;

Nick Kyrgios' meltdowns during the tennis matches are known to all. However, the outspoken Aussie took it too far when he smashed his racquet and threw it in the stands while swearing during Friday's 6-3 6-4 defeat by Borna Coric in the Murray River Open at Melbourne Park.

Nick Kyrgios' meltdowns during the tennis matches are known to all. However, the outspoken Aussie took it too far when he smashed his racquet and threw it in the stands while swearing during Friday's 6-3 6-4 defeat by Borna Coric in the Murray River Open at Melbourne Park. ALSO READ: Nadal continues to struggle with back problem ahead of Australian Open The 25-year-old was warned for bad language and docked a point for unsportsmanlike conduct after the incident. Kyrgios was visibly in pain as he struggled with a left knee issue and needed treatment midway through the match at the Australian Open warm-up event. "I can't serve without pain. When I land it feels unstable," local media quoted Kyrgios as telling a trainer between sets. "I'll probably just play one more game. I'm serving at like 170(kph) instead of 220." The Australian ace, who is playing his first tournament in a year due to COVID-19 pandemic, was warned by the chair umpire for swearing at 4-4 in the second set. Kyrgios smashed his racquet after his serve was broken, he later threw it into the stands. In the previous match, Nick needed assurances from a tournament supervisor that he would not be fined by the ATP for his behaviour in the last round against Harry Bourchier before agreeing to play on.

Furious Nick Kyrgios' smashes racquet and throws it in stands during Murray River Open

Australian Open chief Craig Tiley said he was "absolutely confident" the tournament will start next week despite a fresh coronavirus case that halted warm-up tournaments and forced hundreds of players and officials into isolation on Thursday.

The case, a worker at one of the Melbourne tournament's designated quarantine hotels, has caused yet more chaos before the year's first tennis Grand Slam, which has already been delayed three weeks over coronavirus problems.

But Tiley said the Australian Open would start as scheduled on Monday, and that there were no plans to cancel. Play was suspended at six warm-up tournaments in Melbourne on Thursday.

"We're absolutely confident the Australian Open will go ahead," Tiley told reporters. "The plan is to continue to play tomorrow as planned. If we have to go through this again, we'll go through this again.

"We have three-and-a-half weeks of tennis to play and we'll go in as scheduled."

The incident highlights the difficulty of holding large-scale, international sports events during the pandemic, as officials wrestle over how to safely hold this year's Tokyo Olympics. &nbsp;

Health officials insisted the risk to players and officials, who queued up for coronavirus tests on Thursday, was "low".

Victoria state Health Minister Martin Foley said the 520 people ordered to isolate and get tested were casual contacts, stressing "we are not as concerned about them".

"But out of an abundance of caution we want to ensure we leave no stone unturned in how we follow up and deal with anybody who may have had contact with this individual," he said.

Dedicated facilities were set up to ensure they all get tested quickly, with results often returned within 24 hours.

The Australian Open draw, which was scheduled to take place on Thursday, has been pushed back by a day.

<h2>- Formula One fiasco -</h2>

Stefanos Tsitsipas and Stan Wawrinka were reportedly among those affected by the mini-lockdown although the biggest names of the game, including Serena Williams, Novak Djokovic and Rafael Nadal, were not among those isolated as they spent their mandatory 14-day quarantine in Adelaide.

More than 1,000 players, coaches and officials flew into largely virus-free Australia last month, sparking debate over the whether the tournament should be held during a coronavirus pandemic.

Aggressive restrictions on incoming travel have meant Australia has been one of the world's most successful countries in dealing with the pandemic and one of the few still able to have spectators at sports events.

Daily crowds of between 25,000 and 30,000 are expected at the Australian Open.

Earlier, Victoria state opposition leader Michael O'Brien demanded a definitive call on the Australian Open within 48 hours.

"We don't want to see a situation as we did with the Grand Prix, where crowds were literally turning up, only to be turned away," the Melbourne Herald Sun quoted O'Brien as saying.

"I think people are entitled to know what's happening, and the government should be making their minds up in the next 24 to 48 hours."

Last year's Formula One Grand Prix in Melbourne, the traditional season curtain-raiser, was cancelled just hours before the first practice session after a McLaren team member tested positive.

The late decision left fans fuming as they queued to get in.

While resentment has been bubbling on social media over whether the tournament should go ahead, opinions were mixed on the streets near Melbourne Park, the Australian Open venue.&nbsp;

"I'm just disappointed because the Australian Open seemed from the beginning about profits and not the safety of the public," said John Reilly, echoing some of the online sentiment.&nbsp;

But Melbourne resident Greg Rodgers said the two-week spectacle represented a "return to normalcy".

Victoria had gone 28 days without a locally acquired infection before the latest case, which prompted a tightening of restrictions around wearing masks.

State authorities are extremely wary of coronavirus cases after Melbourne spent four months in lockdown until late October.

Australian Open chief Craig Tiley said he was "absolutely confident" the tournament will start next week despite a fresh coronavirus case that halted warm-up tournaments and forced hundreds of players and officials into isolation on Thursday.

Australian Open chief Craig Tiley said he was "absolutely confident" the tournament will start next week despite a fresh coronavirus case that halted warm-up tournaments and forced hundreds of players and officials into isolation on Thursday. The case, a worker at one of the Melbourne tournament's designated quarantine hotels, has caused yet more chaos before the year's first tennis Grand Slam, which has already been delayed three weeks over coronavirus problems. But Tiley said the Australian Open would start as scheduled on Monday, and that there were no plans to cancel. Play was suspended at six warm-up tournaments in Melbourne on Thursday. "We're absolutely confident the Australian Open will go ahead," Tiley told reporters. "The plan is to continue to play tomorrow as planned. If we have to go through this again, we'll go through this again. "We have three-and-a-half weeks of tennis to play and we'll go in as scheduled." The incident highlights the difficulty of holding large-scale, international sports events during the pandemic, as officials wrestle over how to safely hold this year's Tokyo Olympics. Health officials insisted the risk to players and officials, who queued up for coronavirus tests on Thursday, was "low". Victoria state Health Minister Martin Foley said the 520 people ordered to isolate and get tested were casual contacts, stressing "we are not as concerned about them". "But out of an abundance of caution we want to ensure we leave no stone unturned in how we follow up and deal with anybody who may have had contact with this individual," he said. Dedicated facilities were set up to ensure they all get tested quickly, with results often returned within 24 hours. The Australian Open draw, which was scheduled to take place on Thursday, has been pushed back by a day. - Formula One fiasco - Stefanos Tsitsipas and Stan Wawrinka were reportedly among those affected by the mini-lockdown although the biggest names of the game, including Serena Williams, Novak Djokovic and Rafael Nadal, were not among those isolated as they spent their mandatory 14-day quarantine in Adelaide. More than 1,000 players, coaches and officials flew into largely virus-free Australia last month, sparking debate over the whether the tournament should be held during a coronavirus pandemic. Aggressive restrictions on incoming travel have meant Australia has been one of the world's most successful countries in dealing with the pandemic and one of the few still able to have spectators at sports events. Daily crowds of between 25,000 and 30,000 are expected at the Australian Open. Earlier, Victoria state opposition leader Michael O'Brien demanded a definitive call on the Australian Open within 48 hours. "We don't want to see a situation as we did with the Grand Prix, where crowds were literally turning up, only to be turned away," the Melbourne Herald Sun quoted O'Brien as saying. "I think people are entitled to know what's happening, and the government should be making their minds up in the next 24 to 48 hours." Last year's Formula One Grand Prix in Melbourne, the traditional season curtain-raiser, was cancelled just hours before the first practice session after a McLaren team member tested positive. The late decision left fans fuming as they queued to get in. While resentment has been bubbling on social media over whether the tournament should go ahead, opinions were mixed on the streets near Melbourne Park, the Australian Open venue. "I'm just disappointed because the Australian Open seemed from the beginning about profits and not the safety of the public," said John Reilly, echoing some of the online sentiment. But Melbourne resident Greg Rodgers said the two-week spectacle represented a "return to normalcy". Victoria had gone 28 days without a locally acquired infection before the latest case, which prompted a tightening of restrictions around wearing masks. State authorities are extremely wary of coronavirus cases after Melbourne spent four months in lockdown until late October.

Australian Open boss 'confident' event will go ahead despite Covid case

Alexander Zverev rallied from a set down to beat dangerous Canadian Denis Shapovalov and open his season with a fighting victory in the ATP Cup, while in-form Matteo Berrettini steered Italy into the semi-finals on Wednesday.

The seventh-ranked German had to dig deep for his 6-7 (5/7), 6-3, 7-6 (7/4) win to seal the tie, but gained valuable court time ahead of another crack at a first Grand Slam trophy at the Australian Open starting next week.&nbsp;&nbsp;

Zverev, who fell agonisingly short in the US Open final last year to Dominic Thiem, said having his brother Mischa as team captain had helped him.

"All the players enjoy having him as captain, he's been fantastic in training as well. It's just great to have him here," he said.

Germany's Jan-Lennard Struff upset Milos Raonic 7-6 (7/4), 7-6 (7/2) in the opening match and Canada are now out after a second narrow loss for Shapovalov, who pushed Novak Djokovic hard in their Group A clash on Tuesday.

Djokovic's defending champions beat Canada 2-1 in their opener on Tuesday and will play Germany on Thursday for a place in the semis.

<h2>- Berrettini delivers -</h2>

Italy became the first nation into the last four by beating France to follow their opening win against Austria in Group C.

Fabio Fognini won just five games in his ATP Cup opener on Tuesday against Denis Novak, but bounced back to battle past Benoit Paire 6-1, 7-6 (7/2) and give Italy a 1-0 lead.

Berrettini, tipped by Djokovic as among the new generation capable of winning a Grand Slam, clinched the tie with a comfortable 6-4, 6-2 victory over Gael Monfils, ranked a place below him at 11.

"I was ready for any score. I kept going," said Berrettini, who recovered from going down an early break in the first set. "I thought about my weapons and that's how I won the match.

"It's a great team, great guys. We are enjoying on court, but off court as well," he added. "I think when you're playing for your country, for your team, it's something special."

Russia, the only nation playing with two top 10 stars in Daniil Medvedev and Andrey Rublev, could also make the semis if they beat Kei Nishikori's Japan in their evening clash in Group D.

Hosts Australia, who lost to Rafael Nadal's Spain in their opening Group B tie, face a Greek team spearheaded by Stefanos Tsitsipas on Wednesday evening.

Serbia overcame Spain in the final of the inaugural and hugely popular tournament last year in Sydney -- launched as a rival to the Davis Cup.

It has been slimmed down from 24 teams to 12 this year due to the coronavirus over five days at Melbourne Park with $7.5 million at stake, rather than the multi-city format employed in 2020.

Alexander Zverev rallied from a set down to beat dangerous Canadian Denis Shapovalov and open his season with a fighting victory in the ATP Cup, while in-form Matteo Berrettini steered Italy into the semi-finals on Wednesday.

Alexander Zverev rallied from a set down to beat dangerous Canadian Denis Shapovalov and open his season with a fighting victory in the ATP Cup, while in-form Matteo Berrettini steered Italy into the semi-finals on Wednesday. The seventh-ranked German had to dig deep for his 6-7 (5/7), 6-3, 7-6 (7/4) win to seal the tie, but gained valuable court time ahead of another crack at a first Grand Slam trophy at the Australian Open starting next week. Zverev, who fell agonisingly short in the US Open final last year to Dominic Thiem, said having his brother Mischa as team captain had helped him. "All the players enjoy having him as captain, he's been fantastic in training as well. It's just great to have him here," he said. Germany's Jan-Lennard Struff upset Milos Raonic 7-6 (7/4), 7-6 (7/2) in the opening match and Canada are now out after a second narrow loss for Shapovalov, who pushed Novak Djokovic hard in their Group A clash on Tuesday. Djokovic's defending champions beat Canada 2-1 in their opener on Tuesday and will play Germany on Thursday for a place in the semis. - Berrettini delivers - Italy became the first nation into the last four by beating France to follow their opening win against Austria in Group C. Fabio Fognini won just five games in his ATP Cup opener on Tuesday against Denis Novak, but bounced back to battle past Benoit Paire 6-1, 7-6 (7/2) and give Italy a 1-0 lead. Berrettini, tipped by Djokovic as among the new generation capable of winning a Grand Slam, clinched the tie with a comfortable 6-4, 6-2 victory over Gael Monfils, ranked a place below him at 11. "I was ready for any score. I kept going," said Berrettini, who recovered from going down an early break in the first set. "I thought about my weapons and that's how I won the match. "It's a great team, great guys. We are enjoying on court, but off court as well," he added. "I think when you're playing for your country, for your team, it's something special." Russia, the only nation playing with two top 10 stars in Daniil Medvedev and Andrey Rublev, could also make the semis if they beat Kei Nishikori's Japan in their evening clash in Group D. Hosts Australia, who lost to Rafael Nadal's Spain in their opening Group B tie, face a Greek team spearheaded by Stefanos Tsitsipas on Wednesday evening. Serbia overcame Spain in the final of the inaugural and hugely popular tournament last year in Sydney -- launched as a rival to the Davis Cup. It has been slimmed down from 24 teams to 12 this year due to the coronavirus over five days at Melbourne Park with $7.5 million at stake, rather than the multi-city format employed in 2020.

Zverev battles to ATP Cup win over Shapovalov, Italy reach semis

Australian ace Nick Kyrgios on Wednesday had a meltdown during an argument over a time violation while serving at the Murray River Open.&nbsp;

ALSO READ:&nbsp;<a href="https://www.wionews.com/sports/zverev-battles-to-atp-cup-win-over-shapovalov-italy-reach-semis-361020" hreflang="en">Zverev battles to ATP Cup win over Shapovalov, Italy reach semis</a>

The outspoken Australian, who was leading the match against Harry Bourchier (6-2, 5-5 at that point), walked up to umpire Nacho Forcadelle declaring: "I'm not playing, sorry mate."

Kyrgios, who went on to win the match, said that he was unhappy with the umpire's decision and claimed that he had already begun his service motion.

"It's like you're just doing it to be funny," he fumed at the umpire. "Do you think you're funny?"

He demanded the match supervisor be called, telling the chair official: "When will you guys realise it's not about you. You're just an extra for all of us."

Kyrgios' opponent Bourchier suggested the Aussie to get on with the game, where Nick said: "I want to talk about it now. I've lost enough money to these peanuts."

After winning the match 6-2, 7-6 (9/7), Kyrgios said, "I just like playing by the rules.

"And I just didn't want to play until I was sure I wasn't going to get fined because the ATP are pretty rough all the time, they fine me so much money." &nbsp;

Kyrgios is known for having such meltdowns during the match, for which the Australian has been fined several times. He is also playing his first tournament in a year after a wrist injury and then the coronavirus pandemic brought his 2020 season to a halt.

His win set up a clash next against Croat Borna Coric.

Australian ace Nick Kyrgios on Wednesday had a meltdown during an argument over a time violation while serving at the Murray River Open. ALSO READ: Zverev battles to ATP Cup win over Shapovalov, Italy reach semis The outspoken Australian, who was leading the match against Harry Bourchier (6-2, 5-5 at that point), walked up to umpire Nacho Forcadelle declaring: "I'm not playing, sorry mate.

Australian ace Nick Kyrgios on Wednesday had a meltdown during an argument over a time violation while serving at the Murray River Open. ALSO READ: Zverev battles to ATP Cup win over Shapovalov, Italy reach semis The outspoken Australian, who was leading the match against Harry Bourchier (6-2, 5-5 at that point), walked up to umpire Nacho Forcadelle declaring: "I'm not playing, sorry mate." Kyrgios, who went on to win the match, said that he was unhappy with the umpire's decision and claimed that he had already begun his service motion. "It's like you're just doing it to be funny," he fumed at the umpire. "Do you think you're funny?" He demanded the match supervisor be called, telling the chair official: "When will you guys realise it's not about you. You're just an extra for all of us." Kyrgios' opponent Bourchier suggested the Aussie to get on with the game, where Nick said: "I want to talk about it now. I've lost enough money to these peanuts." After winning the match 6-2, 7-6 (9/7), Kyrgios said, "I just like playing by the rules. "And I just didn't want to play until I was sure I wasn't going to get fined because the ATP are pretty rough all the time, they fine me so much money." Kyrgios is known for having such meltdowns during the match, for which the Australian has been fined several times. He is also playing his first tournament in a year after a wrist injury and then the coronavirus pandemic brought his 2020 season to a halt. His win set up a clash next against Croat Borna Coric.

'Do you think you're funny?': Nick Kyrgios has a meltdown at Murray River Open

Australian Open champion Novak Djokovic got his season off to a perfect start with a battling win over hot-shot Denis Shapovalov in the ATP Cup Tuesday, but world number three Dominic Thiem crashed to defeat.

The Serbian world number one, who will be chasing a ninth Australian Open crown when the first Grand Slam of the year begins on Monday, was pushed hard before coming through 7-5, 7-5 against the Canadian on Rod Laver Arena&nbsp;

Djokovic showed no signs of being hindered by a nasty blister on his racquet hand that troubled him at an Adelaide exhibition last week and returned 30 minutes later alongside Filip Frajinovic to play the decisive doubles rubber.

The pair beat Shapovalov and Milos Raonic 7-5, 7-6 (7/4)&nbsp;as defending champions Serbia took the tie against Canada 2-1 in Group A.

"It was a great opening of the season. Playing Shapo is always a great challenge on hardcourts, he is such a dynamic, explosive player," said Djokovic, who was fired up by playing in front of a smattering of noisy Serbian fans.

"I thought we both played on a pretty high level, so I'm really pleased with the way I started the season.

"This is a great competition," added Djokovic, who won all eight matches he contested en route to the trophy last year.&nbsp;

"We need more competitions where we represent a team, represent our country."&nbsp;

Serbia beat Rafael Nadal's Spain in the final of the inaugural and hugely popular tournament last year in Sydney -- launched as a rival to the Davis Cup.

It has been slimmed down from 24 teams to 12 this year due to the coronavirus with all matches at Melbourne Park over five days with US$7.5 million at stake, rather than the multi-city format employed in 2020.

Spain face a tough opening tie later Tuesday against hosts Australia, with Nadal up against fast-improving Alex de Minaur.

On a cool day, big-serving Raonic got Canada off to a blistering start, crushing Dusan Lajovic 6-3, 6-4 in just 79 minutes to give his team a 1-0 lead, with the former world number three, now ranked 15, dropping just eight points on serve while sending down 11 aces.

It was left to Djokovic to level the tie before clinching the doubles rubber.

The Alexander Zverev-led Germany are also in Group A and play Wednesday.

<h2>- Thiem tumbles -</h2>

While Djokovic tasted victory, US Open champion Thiem, who lost to the Serb in a gripping Australian Open final last year, got his season off to a disappointing start.

He slumped 6-2, 6-4 to Italian world number 10 Matteo Berrettini who never allowed the Austrian to get going with his big-swinging game.

"I'm very happy obviously for myself, but in this competition we're playing for a team, so it's really nice," Berrettini said. "I'm really happy with my performance.

"Playing for your country is something special."

Berrettini was under pressure after Austria took the lead in their Group C clash when 100th-ranked Dennis Novak earned one of the biggest wins of his career, upsetting world number 17 Fabio Fognini 6-3, 6-2.

It sent the tie to a deciding doubles with Thiem returning alongside Novak only to crash again, losing 6-1, 6-4 to Berrettini and Fognini.

Australian Open champion Novak Djokovic got his season off to a perfect start with a battling win over hot-shot Denis Shapovalov in the ATP Cup Tuesday, but world number three Dominic Thiem crashed to defeat.

Australian Open champion Novak Djokovic got his season off to a perfect start with a battling win over hot-shot Denis Shapovalov in the ATP Cup Tuesday, but world number three Dominic Thiem crashed to defeat. The Serbian world number one, who will be chasing a ninth Australian Open crown when the first Grand Slam of the year begins on Monday, was pushed hard before coming through 7-5, 7-5 against the Canadian on Rod Laver Arena Djokovic showed no signs of being hindered by a nasty blister on his racquet hand that troubled him at an Adelaide exhibition last week and returned 30 minutes later alongside Filip Frajinovic to play the decisive doubles rubber. The pair beat Shapovalov and Milos Raonic 7-5, 7-6 (7/4) as defending champions Serbia took the tie against Canada 2-1 in Group A. "It was a great opening of the season. Playing Shapo is always a great challenge on hardcourts, he is such a dynamic, explosive player," said Djokovic, who was fired up by playing in front of a smattering of noisy Serbian fans. "I thought we both played on a pretty high level, so I'm really pleased with the way I started the season. "This is a great competition," added Djokovic, who won all eight matches he contested en route to the trophy last year. "We need more competitions where we represent a team, represent our country." Serbia beat Rafael Nadal's Spain in the final of the inaugural and hugely popular tournament last year in Sydney -- launched as a rival to the Davis Cup. It has been slimmed down from 24 teams to 12 this year due to the coronavirus with all matches at Melbourne Park over five days with US$7.5 million at stake, rather than the multi-city format employed in 2020. Spain face a tough opening tie later Tuesday against hosts Australia, with Nadal up against fast-improving Alex de Minaur. On a cool day, big-serving Raonic got Canada off to a blistering start, crushing Dusan Lajovic 6-3, 6-4 in just 79 minutes to give his team a 1-0 lead, with the former world number three, now ranked 15, dropping just eight points on serve while sending down 11 aces. It was left to Djokovic to level the tie before clinching the doubles rubber. The Alexander Zverev-led Germany are also in Group A and play Wednesday. - Thiem tumbles - While Djokovic tasted victory, US Open champion Thiem, who lost to the Serb in a gripping Australian Open final last year, got his season off to a disappointing start. He slumped 6-2, 6-4 to Italian world number 10 Matteo Berrettini who never allowed the Austrian to get going with his big-swinging game. "I'm very happy obviously for myself, but in this competition we're playing for a team, so it's really nice," Berrettini said. "I'm really happy with my performance. "Playing for your country is something special." Berrettini was under pressure after Austria took the lead in their Group C clash when 100th-ranked Dennis Novak earned one of the biggest wins of his career, upsetting world number 17 Fabio Fognini 6-3, 6-2. It sent the tie to a deciding doubles with Thiem returning alongside Novak only to crash again, losing 6-1, 6-4 to Berrettini and Fognini.

Fired-up Djokovic makes perfect start but Thiem slumps in ATP Cup

Japanese spearhead Kei Nishikori admitted Monday he was "very sore" as he resumes training after two weeks in hard lockdown, as their ATP Cup team frets on doubles specialist Ben McLachlan who is stuck in New Zealand.

Former top-five star Nishikori was among 72 players forced to stay in their rooms 24 hours a day after Covid-19 cases were detected on charter flights bringing them to Melbourne for the Australian Open.

Others were permitted five-hour daily blocks outside to train.

"It is obviously not easy. My body is reacting very tough," said Nishikori, who has slipped to 41 in the world after a series of injuries.&nbsp;

"Very sore everything. But I have still two more days, so I should be okay."

Japan open their ATP Cup campaign on Wednesday against Russia, with Nishikori facing world number four Daniil Medvedev and Yoshohito Nishioka up against eighth-ranked Andrey Rublev.

McLachlan, who has a New Zealand father and Japanese mother, is due to play doubles but is yet to arrive in Australia.

His plans were thrown into disarray when Australia halted its quarantine-free travel for New Zealanders last month after their first case of Covid-19 community transmission in more than two months.

The suspension has now been lifted and McLachlan is hoping to be on a flight Tuesday.

"For a while Ben was telling us he had few options, that they were going to reschedule his route, itinerary," Japan team captain Max Mirnyi said.

"Only yesterday he confirmed they put him on a flight coming in tomorrow during the day."

Japanese spearhead Kei Nishikori admitted Monday he was "very sore" as he resumes training after two weeks in hard lockdown, as their ATP Cup team frets on doubles specialist Ben McLachlan who is stuck in New Zealand.

Japanese spearhead Kei Nishikori admitted Monday he was "very sore" as he resumes training after two weeks in hard lockdown, as their ATP Cup team frets on doubles specialist Ben McLachlan who is stuck in New Zealand. Former top-five star Nishikori was among 72 players forced to stay in their rooms 24 hours a day after Covid-19 cases were detected on charter flights bringing them to Melbourne for the Australian Open. Others were permitted five-hour daily blocks outside to train. "It is obviously not easy. My body is reacting very tough," said Nishikori, who has slipped to 41 in the world after a series of injuries. "Very sore everything. But I have still two more days, so I should be okay." Japan open their ATP Cup campaign on Wednesday against Russia, with Nishikori facing world number four Daniil Medvedev and Yoshohito Nishioka up against eighth-ranked Andrey Rublev. McLachlan, who has a New Zealand father and Japanese mother, is due to play doubles but is yet to arrive in Australia. His plans were thrown into disarray when Australia halted its quarantine-free travel for New Zealanders last month after their first case of Covid-19 community transmission in more than two months. The suspension has now been lifted and McLachlan is hoping to be on a flight Tuesday. "For a while Ben was telling us he had few options, that they were going to reschedule his route, itinerary," Japan team captain Max Mirnyi said. "Only yesterday he confirmed they put him on a flight coming in tomorrow during the day."

Nishikori 'sore' as Japan fret on player stuck in New Zealand

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