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 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 came from one set down to defeat Karolina Muchova in the second round of the 2025 Australian Open.