Coco Gauff's decision to part ways with coach Matt Daly and replace him with a renowned biomechanics expert ahead of the 2025 US Open was recently assessed by prominent tennis insider Gill Gross.

The US Open singles draw runs from August 24 to September 7. Stay locked into Sports Illustrated's Serve On SI for all of your tennis news from the court and beyond. Interview: Aryna Sabalenka is using wearable technology to transform her game. Interview: Madison Keys talks Nasal Strips in tennis, 2025 WTA season, and US Open.

Matthew Daly is out and Gavin MacMillan is in to correct Coco's spate of double faults that has put her in a deep tailspin since winning the French Open.

Gauff has not appeared confident with her serve since beating Aryna Sabalenka on clay earlier this summer. She won three matches in the US Open tuneup earlier at the Cincinnati Open, but lost to Italy's Jasmine Paolini in the fourth round. Last week in Cincinnati, Gauff said she's practicing patience on tour the rest of the season.

There was a time when being on a Wheaties box was the pinnacle of athletic fame. But today, the new status symbol is a smoothie collaboration, and tennis star Coco Gauff is the latest to add her name to a signature beverage. Gauff’s Protein Pineapple Orange Smoothie launches from Naked Smoothies this week—and, of course, her face is on the bottle.

Coco Gauff's 2025 season has been a rocky ride, but she's choosing to have a short memory as she prepares for the US Open.