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

Victoria Mboko, world No. 85 and a wild card at the Canadian Open, secured the biggest win of her career Saturday night, trouncing two-time Grand Slam champion Coco Gauff 6-1, 6-4 in Montreal. This time last year,

The win over Coco Gauff will move Victoria Mboko up to 53rd in the world, having come into the tournament ranked 85th. The 18-year-old is the youngest quarter-finalist at the Canadian Open since Gauff