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,

Two-time defending Australian Open champion Aryna Sabalenka extended a few impressive streaks on Friday while becoming one of the first players to advance to the fourth round of the year's opening Grand Slam tournament.

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.