Canadian teenager Victoria Mboko pulled off the biggest win of her career on Saturday night, defeating world No. 2 and tournament favorite Coco Gauff 6-1 6-4 to reach the quarterfinals of the Omnium Banque Nationale in Montreal.
The 18-year-old wildcard from Canada needed just over an hour to eliminate Gauff, who struggled with unforced errors throughout the match. Gauff, who won the French Open earlier this summer, has now lost three of her last five matches, with disappointing early exits in Berlin and Wimbledon preceding this tournament.