Canadian teenager Victoria Mboko upsets top-seeded Coco Gauff to reach Montreal quarterfinals

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

Gauff dropped to 2-3 since winning the French Open. She followed the major victory with opening losses in Berlin and Wimbledon, then overcame double-fault problems to win two three-set matches in Montreal. Gauff had five double-faults Saturday after having 23 in her opener against Danielle Collins and 14 against Veronika Kudermetova.

The 18-year-old Mboko, ranked 85th in the world, finished off the 21-year-old Gauff — who had 24 unforced errors — in 1 hour, 22 minutes.

Victoria Mboko, of Canada, reacts after her win over Coco Gauff, of the United States, during round of 16 match action at the National Bank Open women’s tennis tournament in Montreal, Saturday, Aug. 2, 2025. (Christinne Muschi/The Canadian Press via AP) Victoria Mboko, of Canada, reacts after her win over Coco Gauff, of the United States, during round of 16 match action at the National Bank Open women’s tennis tournament in Montreal, Saturday, Aug. 2, 2025. (Christinne Muschi/The Canadian Press via AP) Share Share Facebook

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Victoria Mboko, right, of Canada, is congratulated after her win by Coco Gauff, left, of the United States, during round of 16 match action at the National Bank Open women’s tennis tournament in Montreal, Saturday, Aug. 2, 2025. (Christinne Muschi/The Canadian Press via AP) Victoria Mboko, right, of Canada, is congratulated after her win by Coco Gauff, left, of the United States, during round of 16 match action at the National Bank Open women’s tennis tournament in Montreal, Saturday, Aug. 2, 2025. (Christinne Muschi/The Canadian Press via AP) Share Share Facebook

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“Your support was incredible,” Mboko told the crowd in French after a chorus of “Olé, Olé, Olé!” chants echoed around the venue. “I’m really happy to win today. .. It’s incredible. I’m so happy to beat such a great champion.”

Mboko will face the winner of the late match between Lin Zhu of China and Jessica Bouzas Maneiro of Spain.

In Rome in May, Gauff rallied to beat Mboko 3-6, 6-2, 6-1.

Earlier, 24th-seeded Marta Kostyuk of Ukraine and ninth-seeded Elena Rybakina of Kazakhstan set up a quarterfinal match. Kostyuk beat McCartney Kessler of the United States 5-7, 6-3, 6-3, and Rybakina topped Dayana Yastremska of Ukraine 5-7, 6-2, 7-5.

Victoria Mboko, of Canada, reacts following her win over Coco Gauff, of the United States, during round of 16 match action at the National Bank Open women’s tennis tournament in Montreal, Saturday, Aug. 2, 2025. (Christinne Muschi/The Canadian Press via AP) Victoria Mboko, of Canada, reacts following her win over Coco Gauff, of the United States, during round of 16 match action at the National Bank Open women’s tennis tournament in Montreal, Saturday, Aug. 2, 2025. (Christinne Muschi/The Canadian Press via AP) Share Share Facebook

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Coco Gauff, right, of the United States, waves to the crowd after her loss to Victoria Mboko, of Canada, during round of 16 match action at the National Bank Open women’s tennis tournament in Montreal, Saturday, Aug. 2, 2025. (Christinne Muschi/The Canadian Press via AP) Coco Gauff, right, of the United States, waves to the crowd after her loss to Victoria Mboko, of Canada, during round of 16 match action at the National Bank Open women’s tennis tournament in Montreal, Saturday, Aug. 2, 2025. (Christinne Muschi/The Canadian Press via AP) Share Share Facebook

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AP tennis: https://apnews.com/hub/tennis

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