Victoria Mboko, just 18 and ranked No. 85, stunned No. 1 seed Coco Gauff in straight sets to become the youngest Canadian quarterfinalist at the Omnium Banque Nationale in nearly four decades.

Gauff has dropped to 2-3 since winning Roland Garros, following up the major victory with opening losses in Berlin and Wimbledon.

MONTREAL — Victoria Mboko’s stellar run at the National Bank Open hit a new level Saturday. The Canadian rolled to a 6-1, 6-4 win over No. 1 seed Coco Gauff of the United States, winning the women's ...

Marta Kostyuk of Ukraine and Elena Rybakina of Kazakhstan have advanced to the quarterfinals of the women's National Bank ...