Coco Gauff shakes up coaching team days before U.S. Open

Just days before the start of the 2025 U.S. Open, American tennis star Coco Gauff has shaken up her coaching team. The world No. 3 and reigning French Open champion has parted ways with Matt Daly, while continuing to work with long-time mentor Jean-Christophe Faurel.

To fill the gap, Gauff has brought in biomechanics specialist Gavin MacMillan, best known for helping Aryna Sabalenka overcome her own serving troubles.

Despite her recent titles the China Open, the WTA Finals, and her second Grand Slam at Roland Garros. Gauff’s form has dipped in recent months.

• At Wimbledon 2025, she suffered a shock first-round exit.

• At the Canadian Open, she struggled with her serve, committing an astonishing 42 double faults across three matches, according to tournament stats.

Bringing Jean-Christophe on board, is Gauff clearly aiming to replicate a turnaround just in time for her title challenge in New York.

So what is next for Gauff? The 20-year-old will enter the U.S. Open as one of the tournament favorites, but the question is whether this last-minute coaching switch will stabilize her serve or add extra pressure. Fans are eager to see if she can carry her Roland Garros form onto the hard courts of Flushing Meadows.