Ben Shelton won the National Bank Open on Thursday night for the third and biggest title of his young career Thursday night, rallying to beat 11th -seeded Karen Khachanov of Russia 6-7 (5), 6-4, 7-6 (3).

The 22-year-old American wins his first Masters 1000 final against Khachanov. In the women's final, Mboko upsets Osaka.

Ben Shelton is headed to his first ATP Masters 1000 final after taking down World No. 4 Taylor Fritz at the National Bank Open in Toronto.