Overview
- Naomi Osaka, ranked No. 24, beat No. 3 Coco Gauff 6-3, 6-2 to make the US Open quarterfinals, where she will face Karolina Muchova.
- The result is Osaka’s best Grand Slam run since returning to the tour in early 2024 after giving birth, building on her Montreal final.
- Osaka added former Iga Swiatek coach Tomasz Wiktorowski this summer, while Gauff enlisted biomechanist Gavin MacMillan to work on a persistent double‑fault problem.
- Félix Auger-Aliassime defeated Andrey Rublev to reach the last eight and will play Alex de Minaur, as Jannik Sinner moved through to face Lorenzo Musetti.
- Iga Swiatek eased past Ekaterina Alexandrova and now meets Amanda Anisimova, with the winner set to play Osaka or Muchova in the semifinals.