Ben Shelton won the National Bank Open for the third and biggest title of his young career, rallying to beat 11th -seeded Karen Khachanov.

Ben Shelton became the first American to win an ATP Masters 1000 title in Canada in more than two decades as he defeated Karen Khachanov 6-7 (5/7), 6-4, 7-6 (7/3) in Toronto final on Thursday.

The world number seven capped off an impressive week that saw him beat Italian 13th seed Flavio Cobolli, Australian ninth seed Alex de Minaur and American second seed Taylor Fritz on his way to achieving his first Masters 1000 title and the biggest title of his career.