A four-time Grand Slam champion, Osaka returned from maternity leave last year and lost in the first or second round of all four major tournaments. The 27-year-old Japan native has not won any event on the WTA Tour since capturing her second Australian Open title to start 2021.

Naomi Osaka beat Karolina Muchova 1-6, 6-1, 6-3 at the Australian Open, reaching the third round at a Grand Slam for the first time since her return from maternity leave.

Since returning to action a year ago, Osaka has shown signs of getting her game back together, including a memorable and narrow loss to then-No. 1 Iga Swiatek at the French Open.

The 1-6, 6-1, 6-3 victory over Karolina Muchova allowed Osaka to reach the third round at a major tournament for the first time since the 2022 season.

At her peak, the four-time Grand Slam champion played her best tennis in the toughest moments. In Melbourne, she did it again.

Two-time Australian Open champion Naomi Osaka has stopped playing because of an injury after dropping the opening set of her third-round match against Belinda Bencic

After losing the first set 7-6 (3), two-time Australian Open champ Naomi Osaka retired from her third-round match against Belinda Bencic due to injury.

Third round action at the Australian Open sees two-time AO champion Naomi Osaka looking to post her best result at a Grand Slam since 2021, while Jessica Pegula continues her question to reach another Grand Slam title.

Naomi Osaka came from a set down to beat Karolina Muchova and reach the third round of the Australian Open - and she admits she was desperate for revenge