American tennis star Coco Gauff makes major change just days before US Open

Coco Gauff is making a big change before her start at the 2025 U.S. Open in New York. 

The American tennis star has parted ways with Matt Daly, one of her coaches, while bringing in biomechanics expert Gavin MacMillan, according to multiple reports.

"Only have good things to say about Coco, enjoyed working with her," Daly told Bounces, confirming their split. 

CLICK HERE FOR MORE SPORTS COVERAGE ON FOXNEWS.COM

Why would the 21-year-old make the switch now before the final Grand Slam of the year? The answer may have to do with her serve.

Since her shocking first-round exit

1. Homepage
2. Sports
3. American tennis star Coco Gauff makes major change just days before US Open