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,

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).

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).