American World No 3 Jessica Pegula suffers shock French Open upset against unknown rival Lois Boisson

Women’s tennis No. 3 Jessica Pegula was stunned in the French Open on Monday as she fell to the unseeded Lois Boisson in the fourth round

The American Pegula ultimately lost 6-3, 4-6, 4-6 after  a strong start against the unheralded French player.

Boisson, 22, had never appeared in a Grand Slam before this year at Roland-Garros, but is now the only French singles player (men’s or women’s) left in the tournament.