In the women's draw, top seed Iga Swiatek was beaten by home favourite Jessica Pegula, who'll take on Karolina Muchova in the semis tonight.
Jack Draper says he's yet to show his best at the US Open, despite reaching a first grand slam semi-final.
The British number one will take on top seed Jannik Sinner tomorrow, after beating Alex de Minaur.
He's yet to drop a set in New York.
In the women's draw, top seed Iga Swiatek was beaten by home favourite Jessica Pegula, who'll take on Karolina Muchova in the semis tonight.
Should Pegula win, it could be an all-American final - if Emma Navarro can beat Aryna Sabalenka.
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