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

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.

Aug 7 (Reuters) - American fourth seed Ben Shelton battled from a set down to clinch his first ATP Masters 1000 title at the Canadian Open in Toronto on Thursday, defeating Russian 11th seed Karen Khachanov 6-7 (5) 6-4 7-6 (3).