US Open 2025
Venue: Flushing Meadows, New York Dates: 24 August-7 September
Coverage: Live radio commentaries across 5 Live Sport and BBC Sounds, plus live text commentaries on the BBC Sport website & app
Home favourite Coco Gauff came through a stern examination of her troublesome serve to beat Australia's Ajla Tomljanovic in a competitive US Open first-round match.
Third seed Gauff was far from convincing but did enough to win 6-4 6-7 (2-7) 7-5 in almost three hours during Tuesday's night session at Flushing Meadows.
The 21-year-old American's serve came under particularly scrutiny given the ongoing troubles with her opening shot.