Coco Gauff Survives U.S. Open Opener Amid Bold Mid-Season Serve Overhaul

Reese, Kmac and Alex discuss Coco Gauff's golf performance.

At the 2025 U.S. Open, Coco Gauff advanced through a tense opening-round battle against Ajla Tomljanovic, winning 6‑4, 6‑7(2), 7‑5. Despite racking up 59 unforced errors and 10 double faults, Gauff got the job done. Her performance came amid a bold overhaul of her serving technique, a process she undertook after parting ways with longtime coach Matt Daly. She brought in biomechanics expert Gavin MacMillan—renowned for his work with Aryna Sabalenka—to address deep-rooted technical flaws. The transition hasn’t been smooth, but it’s already producing promising results: Gauff has reduced her double faults from 23 in Montreal to just 10 in this match. 

Gauff now faces Olympic silver medalist Donna Vekic in the second round, a matchup that will further test her revamped game. Gauff is undergoing a technical transformation, rebuilding her serve mid-season—a risky move that may be starting to pay off.