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 biggest title of his career to-date after claiming the Canadian Open men’s singles crown after a pulsating final 6-7(5), 6-4, 7-6(3) victory against Karen Khachanov.Shelton becomes the youngest American ATP Masters 1000 champion since 21-year-old Andy Roddick won the 2004 Miami title.

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.