American Jessica Pegula, the world No. 3-ranked woman, lost to world No. 361 Lois Boisson in a shock French Open upset Monday. Boisson electrified the local crowd as she advanced to the quarterfinals,

Loïs Boisson is the lowest-ranked woman to beat someone ranked in the top five at the French Open in 40 years.

The win pushes Gauff to the French Open quarterfinals for the fifth time in her career. Of the four Grand Slams, Gauff has been most consistent at the French Open. She finished as a quarterfinalist in both 2021 and 2023, made the semifinals in 2024 and finished as a finalist in 2022. Despite that success, Gauff has never won the event.