French wild card stuns No. 3 seed Jessica Pegula in Paris

Wild card Lois Boisson thrilled her home fans with a stunning fourth-round upset of No. 3 seed Jessica Pegula on Monday at the French Open in Paris.

Ranked No. 361 in the world, the 22-year-old Boisson rallied for a 3-6, 6-4, 6-4 victory before a delighted crowd at Court Philippe-Chatrier at Roland Garros.

Boisson's 2-hour, 40-minute breakthrough came in her first Grand Slam main draw and just her second WTA Tour event, becoming the first Frenchwoman to reach the quarterfinals since 2017.

Pegula, ranked No. 3 in the world, had a 4-3 lead in both the second and third sets but couldn't put Boisson away.

Boisson is the lowest-ranked woman to make a Grand Slam quarterfinal since No. 418 Kaia Kanepi at the 2017 U.S. Open, and the first woman to reach that round in her first major since Carla Suarez Navarro in Paris in 2008.

Up next for Boisson is No. 6 seed Mirra Andreeva, who also moved on in straight sets. The 18-year-old Russian dispatched practice partner and No. 17 seed Daria Kasatkina 6-3, 7-5 to become the youngest woman to reach the final eight at the clay-court major since Martina Hingis in 1997-98.

Andreeva, who overcame a 5-3 deficit in the second set, compiled a 28-11 edge in winners and converted four of seven break chances.

No. 2 seed Coco Gauff advanced to her fifth consecutive French Open quarterfinal with a 6-0, 7-5 victory against 20th-seeded Russian Ekaterina Alexandrova in 82 minutes.

At 21, Gauff is the fourth-youngest woman in the Open Era to record a streak that long behind Hingis (1997-2001), Stefanie Graf (1986-90) and Conchita Martinez (1989-93).

Gauff, a finalist in 2022, will face fellow American Madison Keys in the quarterfinals. The seventh-seeded Keys defeated Hailey Baptiste 6-3, 7-5.