Despite her remarkable athleticism and return stats, Coco Gauff remains vulnerable behind her second serve. A technical and mental flaw that could block her path to the top.

Gauff has been eyeing a second major title since she won the 2023 U.S. Open at age 19. She hasn’t reached a major final since then, although she did advance to the 2022 French Open final, losing to Iga Świątek, this year’s reigning champion.

Second-seeded Coco Gauff defeated fellow American Madison Keys 6-7 (6), 6-4, 6-1, in the French Open quarterfinals on Wednesday.