Naomi&nbsp;Osaka&nbsp;came to Flushing Meadows to entertain and did not disappoint on Monday, overcoming a slow start to beat Czech Marie Bouzkova 6-4, 6-1 and get her US&nbsp;Open title defence under way in front of a roaring capacity crowd.

Unseeded Bouzkova held her own through much of the first set but failed to convert on four break point opportunities against the Japanese four-time Grand Slam winner.

Osaka, who fired 21 winners but committed 13 unforced errors in the first set, broke Bouzkova's serve at 5-4 to win the opener and never looked back, winning the first five games of the second despite struggling with her first serve.

ALSO READ |&nbsp;<a href="https://www.wionews.com/sports/us-open-forgotten-man-andy-murray-gives-stefanos-tsitsipas-match-to-remember-before-bowing-out-in-five-set-thriller-409552">US Open: Forgotten man Andy Murray gives Stefanos Tsitsipas match to remember before bowing out in five-set thriller</a>

The world number three closed out the match with a forehand winner, offering a smile and a wave to the stands that were empty a year ago.

"I'm the type of player that wants to entertain a crowd as well. I think last year I was just really business," she said.

"I wouldn't try to hit a crazy serve or anything like that. Of course, I'm only one match in here and I don't think I've gotten that distracted yet."

Osaka's only previous meeting with Bouzkova came at the first round of the Australian Open in 2020, where she also won in straight sets.

"I thought today's match was really tough. I haven't played her in a while. I guess just to be able to be the first night match and to win in two sets was really important to me," she told reporters.

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This is the feel-good content we NEED.<a href="https://twitter.com/naomiosaka?ref_src=twsrc%5Etfw">@naomiosaka</a> shared an Olympic pin with a young fan after her win tonight. 🥰<a href="https://t.co/VBLBaBRqJD">pic.twitter.com/VBLBaBRqJD</a>
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In the run-up to the year's final major, much of the talk around&nbsp;Osaka&nbsp;focused on her inconsistent play and relative lack of time on court as she crashed out in the third round of the Tokyo Olympics and the Western &amp; Southern Open.

But the match marked a reassuring return to form for the 23-year-old, who looks the likeliest candidate to upset world number one Ash Barty on the New York hardcourts.

Osaka, who had her powerful forehand dialled in and held Bouzkova to just 10 winners in the entire match, said she felt at home at Arthur Ashe Stadium, where she won her first major title three years ago.

"I'm always nervous during the first round in a Slam," said&nbsp;Osaka.

"It felt kind of surreal to walk onto the court and to hear an actual audience this time. To see people and to hear their energy, because last year the automated crowd noise was kind of the same all the time.

"But here, people are reacting in real time, so it was cool."

Naomi Osaka came to Flushing Meadows to entertain and did not disappoint on Monday, overcoming a slow start to beat Czech Marie Bouzkova 6-4, 6-1 and get her US Open title defence under way in front of a roaring capacity crowd.

Naomi Osaka came to Flushing Meadows to entertain and did not disappoint on Monday, overcoming a slow start to beat Czech Marie Bouzkova 6-4, 6-1 and get her US Open title defence under way in front of a roaring capacity crowd. Unseeded Bouzkova held her own through much of the first set but failed to convert on four break point opportunities against the Japanese four-time Grand Slam winner. Osaka, who fired 21 winners but committed 13 unforced errors in the first set, broke Bouzkova's serve at 5-4 to win the opener and never looked back, winning the first five games of the second despite struggling with her first serve. ALSO READ | US Open: Forgotten man Andy Murray gives Stefanos Tsitsipas match to remember before bowing out in five-set thriller The world number three closed out the match with a forehand winner, offering a smile and a wave to the stands that were empty a year ago. "I'm the type of player that wants to entertain a crowd as well. I think last year I was just really business," she said. "I wouldn't try to hit a crazy serve or anything like that. Of course, I'm only one match in here and I don't think I've gotten that distracted yet." Osaka's only previous meeting with Bouzkova came at the first round of the Australian Open in 2020, where she also won in straight sets. "I thought today's match was really tough. I haven't played her in a while. I guess just to be able to be the first night match and to win in two sets was really important to me," she told reporters. This is the feel-good content we NEED.@naomiosaka shared an Olympic pin with a young fan after her win tonight. 🥰pic.twitter.com/VBLBaBRqJD — US Open Tennis (@usopen) August 31, 2021 × In the run-up to the year's final major, much of the talk around Osaka focused on her inconsistent play and relative lack of time on court as she crashed out in the third round of the Tokyo Olympics and the Western & Southern Open. But the match marked a reassuring return to form for the 23-year-old, who looks the likeliest candidate to upset world number one Ash Barty on the New York hardcourts. Osaka, who had her powerful forehand dialled in and held Bouzkova to just 10 winners in the entire match, said she felt at home at Arthur Ashe Stadium, where she won her first major title three years ago. "I'm always nervous during the first round in a Slam," said Osaka. "It felt kind of surreal to walk onto the court and to hear an actual audience this time. To see people and to hear their energy, because last year the automated crowd noise was kind of the same all the time. "But here, people are reacting in real time, so it was cool."

Naomi Osaka the 'entertainer' kicks off US Open title defence with straight sets win

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Naomi Osaka the 'entertainer' kicks off US Open title defence with straight sets win