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

An absolute surprise at the Montreal Open after Coco Gauff's defeat to young Canadian Victoria Mboko. The world No. 2 was far from her usual level, and while she managed to reduce her double faults, she had a poor 43% first-serve percentage throughout the match and ended up losing 6-1,

Canadian teenager Victoria Mboko earned the biggest win of her career on Saturday, beating top seed Coco Gauff 6-1 6-4 to reach the quarterfinals of the Canadian Open in Montreal. Mboko dropped her racket and covered her face in disbelief as the packed crowd leapt to their feet after the 18-year-old tournament wild card sealed the victory in just over an hour.