Nick Kyrgios said Australian co-captain Lleyton Hewitt threw him "under the bus" after his decision to withdraw from the United Cup mixed teams tournament to be in top condition for next month's Australian Open.&nbsp;World number 22 Kyrgios, who enjoyed a superb 2022 winning the Australian Open men's doubles title and finishing runner-up to Novak Djokovic in the Wimbledon final, pulled out of the joint ATP and WTA event on Wednesday with an injury.

Hewitt said on Thursday that he had been unaware of Kyrgios' withdrawal until the 27-year-old's announcement and expressed frustration over his lack of communication.

ALSO READ:&nbsp;<a href="https://www.wionews.com/sports/when-brazilian-legend-pele-played-an-exhibition-match-against-mohun-bagan-at-eden-gardens-in-kolkata-548006">When Brazilian legend Pele played an exhibition match against Mohun Bagan at Eden Gardens in Kolkata</a>

On Friday, Australia's Ajla Tomljanovic pulled out of her match against Britain's Harriet Dart due to a left knee injury and Kyrgios responded to a Twitter post wondering if she would be treated similarly by co-captain Sam Stosur.

"Mmm I wonder if Stosur will throw her under the bus like our captain did for me... 'hard to prepare when you don't know what's going on'," Kyrgios said.

Kyrgios, who opted out of Australia's Davis Cup team this year, said he had been in communication with Tennis Australia chief executive Craig Tiley as well as United Cup tournament director Stephen Farrow about his injury.

The mercurial Australian trained on the practice courts at Sydney Olympic Park on Friday. The Australian Open begins on Jan. 16.

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Nick Kyrgios said Australian co-captain Lleyton Hewitt threw him "under the bus" after his decision to withdraw from the United Cup mixed teams tournament to be in top condition for next month's Australian Open.

Nick Kyrgios said Australian co-captain Lleyton Hewitt threw him "under the bus" after his decision to withdraw from the United Cup mixed teams tournament to be in top condition for next month's Australian Open. World number 22 Kyrgios, who enjoyed a superb 2022 winning the Australian Open men's doubles title and finishing runner-up to Novak Djokovic in the Wimbledon final, pulled out of the joint ATP and WTA event on Wednesday with an injury. Hewitt said on Thursday that he had been unaware of Kyrgios' withdrawal until the 27-year-old's announcement and expressed frustration over his lack of communication. ALSO READ: When Brazilian legend Pele played an exhibition match against Mohun Bagan at Eden Gardens in Kolkata On Friday, Australia's Ajla Tomljanovic pulled out of her match against Britain's Harriet Dart due to a left knee injury and Kyrgios responded to a Twitter post wondering if she would be treated similarly by co-captain Sam Stosur. "Mmm I wonder if Stosur will throw her under the bus like our captain did for me... 'hard to prepare when you don't know what's going on'," Kyrgios said. Kyrgios, who opted out of Australia's Davis Cup team this year, said he had been in communication with Tennis Australia chief executive Craig Tiley as well as United Cup tournament director Stephen Farrow about his injury. The mercurial Australian trained on the practice courts at Sydney Olympic Park on Friday. The Australian Open begins on Jan. 16. WATCH WION LIVE HERE

United Cup 2023: Australian camp frustrated by lack of communication between Nick Kyrgios and Lleyton Hewitt

Australian tennis player Bernard Tomic has denied compatriot Lleyton Hewitt's allegations that he had made threats against the former world number one and his family, local media reported on Friday.

Davis Cup captain Hewitt told reporters at Melbourne Park late on Thursday that he had banned Tomic from playing in the Australian team after receiving physical and verbal threats, including "blackmail", from the 26-year-old.

World number 88 Tomic returned serve on Friday, describing Hewitt as a "liar".

"I have never threatened his family," Tomic told News Corp Australia.

"Nice, Lleyton. To think how low of a person you actually (are) and (it's) why the Australian public never liked you.

"I got nothing to do with your family and I don't care what's wrong with you, you liar."

Tomic triggered the war of words after being dumped from the Australian Open first round.

At his post-match media conference, he called for twice Grand Slam champion Hewitt to be replaced as Davis Cup captain and accused him of favouritism in the awarding of wildcards to the Australian men's players in the draw.

Australian tennis player Bernard Tomic has denied compatriot Lleyton Hewitt's allegations that he had made threats against the former world number one and his family, local media reported on Friday.

Australian tennis player Bernard Tomic has denied compatriot Lleyton Hewitt's allegations that he had made threats against the former world number one and his family, local media reported on Friday. Davis Cup captain Hewitt told reporters at Melbourne Park late on Thursday that he had banned Tomic from playing in the Australian team after receiving physical and verbal threats, including "blackmail", from the 26-year-old. World number 88 Tomic returned serve on Friday, describing Hewitt as a "liar". "I have never threatened his family," Tomic told News Corp Australia. "Nice, Lleyton. To think how low of a person you actually (are) and (it's) why the Australian public never liked you. "I got nothing to do with your family and I don't care what's wrong with you, you liar." Tomic triggered the war of words after being dumped from the Australian Open first round. At his post-match media conference, he called for twice Grand Slam champion Hewitt to be replaced as Davis Cup captain and accused him of favouritism in the awarding of wildcards to the Australian men's players in the draw.

Tomic denies Hewitt allegations, calls him 'liar': Report

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United Cup 2023: Australian camp frustrated by lack of communication between Nick Kyrgios and Lleyton Hewitt

Tomic denies Hewitt allegations, calls him 'liar': Report