American fourth seed Ben Shelton battled from a set down to clinch his first ATP Masters 1000 title at the Canadian Open on Thursday, defeating Karen Khachanov of Russia 6-7(5) 6-4 7-6(3).

American fourth seed Ben Shelton battled from a set down to win his first ATP Masters 1000 title at the Canadian Open, defeating Russia's Karen Khachanov 6-7(5), 6-4, 7-6(3).

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).