Gauff is reconstructing the most important shot in the sport on the eve of her most important tournament.

Gauff is reconstructing the most important shot in the sport on the eve of her most important tournament.

On the night that she debuted her new service motion, it was Gauff's tennis foundations that propelled her to victory.

Coco Gauff's revamped serve disposed slower deliveries, but supreme athleticism and bustling backhands helped her survive her first foe at the 2025 U.S. Open.