US Open 2025: Coco Gauff says revamped serve was tested by old habits in first-round win
Coco Gauff said her first-round win at the U.S. Open on Tuesday was shaped by a mental battle to trust her revamped serve, as the American third seed worked to overcome old habits during tense moments of her hard-fought victory over Ajla Tomljanovic. Gauff, the 2023 U.S. Open champion, arrived in New York after splitting…