Iga Swiatek weathered an unexpected storm to reach the US Open third round on Thursday, while defending mens champion Jannik Sinner delivered a masterclass and Naomi Osaka rediscovered her groove at Flushing Meadows.
However, the days most dramatic moments belonged to Coco Gauff, who wiped away tears mid-match before rallying to beat Donna Vekic and avenge her Olympic heartbreak from Paris.
Second seed Swiatek, fresh from her Wimbledon triumph and Cincinnati title, was forced to grind it out against unseeded Suzan Lamens in a 6-1, 4-6, 6-4 thriller on Arthur Ashe Stadium that proved far trickier than expected.
