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

Naomi Osaka, ranked just No. 51 in the world after a disappointing 2024 season, shook off a slow start en route to a second-round upset win in the Australian Open on Wednesday. Osaka rallied past 20th-seeded Karolina Muchova 1-6,

Naomi Osaka defeated No. 20 Karolina Muchova 1-6, 6-1, 6-3 on Wednesday to reach the third round of a major for the first time since the 2022 Australian Open.

Naomi Osaka said she was enjoying a little bit of revenge against Karolina Muchova at the Australian Open on Wednesday, recalling how the Czech had ended her U.S. Open campaign last year when she was sporting her "best outfit ever".

Distracted by a time penalty and unable to counteract No. 97-ranked Laura Siegemund's aggressive approach, Zheng Qinwen's loss in the second round Wednesday fell a long way short of last year's run to the Australian Open final.

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.

Osaka is back in the third round of a Grand Slam tournament for the first time since 2022, getting there with wins over two women who blocked her path last year.