Watching how Victoria Mboko sliced through the National Bank Open competition and took down four Grand Slam winners to her first WTA title, it's hard to imagine the 18-year-old Canadian was once nervous before tennis matches and easily flustered on the court.

Victoria Mboko has done it. The 18-year-old Canadian defeated Japan’s Naomi Osaka 2-6, 6-4, 6-1 on Thursday night to capture the women’s title at the National Bank Open presented by Rogers. It’s Mboko’s first tour-level title,

After her second comeback victory in as many nights, Mboko became the first Canadian in the Open era (since 1968) to win an NBO singles title in Montreal. She’s just the third Canadian champ overall of the WTA Tour 1000 event in that timespan.