Canadian teenager Victoria Mboko upset top-seeded Coco Gauff 6-1, 6-4 on Saturday night to reach the National Bank Open quarterfinals.

Canadian teenager Victoria Mboko delivered the biggest victory of her career on Saturday when she dominated top-seeded Coco Gauff 6-1, 6-4 to advance to the quarterfinals of the National Bank Open at Montreal.

Mboko's stellar run at the National Bank Open hit a new level Saturday with a dominant 6-1, 6-4 victory over Coco Gauff of the United States, lifting the 18-year-old from Toronto into the quarterfinals before a raucous, sellout crowd at IGA Stadium.