Overview
- Osaka defeated No. 15 seed Daria Kasatkina 6-0, 4-6, 6-3 in 1 hour 44 minutes at Louis Armstrong Stadium.
- The win is her first trip to the US Open last 16 since her 2020 title run and her first fourth round at any major since the 2021 Australian Open.
- Gauff advanced earlier on Arthur Ashe Stadium, beating No. 28 Magdalena Frech 6-3, 6-1 to reach the round of 16 for a fourth straight year.
- Osaka and Gauff last met at the US Open in 2019, when Osaka won and comforted a then-15-year-old Gauff after the match.
- Their match is slated for Monday in New York, drawing interest as Osaka returns to form following her 2024 comeback from maternity leave.