World number two Coco Gauff suffered a bitter defeat in the Round of 16 against a daring underdog at the WTA 1000 tennis tournament in Montreal, which boasts a prize pool of over $5 million. Canadian rising star Victoria Mboko, just 18 years old, stunned the American favorite with a 6-1, 6-4 victory in just 62 minutes, celebrating the biggest triumph of her career so far.

 Earlier this year, Mboko was ranked 333 in the world. She has since climbed to No. 85 and, in the live rankings, now sits at 53. With one more win, she could break into the top 25. Zverev Advances as Opponent Retires At the ATP 1000 event in Toronto, top seed Alexander Zverev earned his first-ever win over Francisco Cerúndolo in their fourth meeting—though under unfortunate circumstances. The Argentine had to retire while trailing 4-6, 0-1 due to an abdominal muscle strain. Meanwhile, both Danish player Holger Rune and Norwegian star Casper Ruud—forming a strong Scandinavian duo—were knocked out of the tournament.