Naomi Osaka's second-round match at the Australian Open could not possibly have started in a worse way. All of 21 minutes in, she sailed a forehand service return well long and, just like that, trailed 5-0.

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

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.

For the first time in three years, the tennis world will see Naomi Osaka in the third round of a Grand Slam.

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.

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".

Naomi Osaka’s fitness for the Australian Open is in question after the four-time Grand Slam champion and former No. 1 suffered an apparent abdominal injury while playing the final of a WTA tournament in Auckland.

Former world No. 1 Naomi Osaka retired from the ASB Classic final in Auckland on Sunday due to an abdominal injury after winning the first set against Clara Tauson.

Naomi Osaka is back in the third round of a Grand Slam tournament for the first time since 2022 and she got there with wins at the Australian Open over two women who blocked her path last year. Olympic champion Zheng Qinwen won't be repeating her surprising run to the Australian Open final after a second-round upset loss to No.