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 earned the biggest win of her young career with a dominant win over No. 1 seed Coco Gauff of the United States to reach the National Bank Open quarterfinals in Montreal. The 18-year-old from Toronto is having a breakthrough season after starting the year ranked outside the top 300. (Aug. 3, 2025)

Canada’s Victoria Mboko continues to shine bright as she secured the biggest win of her short career. The 18-year-old defeated current world number two and top-seed Coco Gauff in the fourth round of the National Bank Open in Montreal in straight sets with a score of 6-1,