How Coco Gauff Fixed Her Serve in a Single Year

Coco Gauff made a high-stakes coaching change just days before last year's US Open, bringing in a biomechanics specialist to address her serve, which had become a significant liability in women's tennis. The gamble has paid off, with her serve showing marked improvement by this year's US Open. Gauff was photographed serving against Liudmila Samsonova at the Cincinnati Open on August 16, 2026, further demonstrating her progress.