Beatriz Haddad Maia beat Caroline Wozniacki 6-2, 3-6, 6-3 to become the first Brazilian to reach the US Open quarterfinals since Maria Bueno 56 years ago.

Jessica Pegula stopped Diana Shnaider 6-4, 6-2 to return to join Emma Navarro as the second American woman into the US Open elite eight.

Quarterfinals commence on Day 9 - here's what we'll be watching in Flushing Meadows.

Foe was ferocious, and the Ashe faithful were on song on Sunday night in Ashe.

Round of 16 action wraps up on Day 8 at the US Open. Here's what we're watching.

Emma Navarro exploited 19 double faults from Coco Gauff dethroning the defending champion 6-3, 4-6, 6-3 reaching her maiden US Open quarterfinal.

Grigor Dimitrov topped Andrey Rublev 6-3, 7-6(3), 1-6, 3-6, 6-3 scoring his 450th win and advancing to his eighth career Grand Slam quarterfinal.