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).

Ben Shelton has captured his first Masters 1000 title. The American beat Russian Karen Khachanov 6-7 (5), 6-4, 7-6 (3) on Thursday at the National Bank Open presented by Rogers to win the men's singles final. Shelton's victory marks the fourth year in a row that the National Bank Open champion is a first-time Masters 1000 winner.

Karen Khachanov rallied to defeat top seed Alexander Zverev and book an ATP Toronto Masters title clash with Ben Shelton, who beat second seeded Taylor Fritz on Wednesday.Shelton, seeded fourth, hammered Fritz 6-4,