Ben Shelton rallies to beat Karen Khachanov in Toronto for biggest title of career

• American claims third career ATP title in Toronto

• Shelton fires 16 aces in Masters 1000 final win

• Moves to career-high world No 6 with victory

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).

The world No 7 capped off an impressive week that saw him beat Italian 13th seed Flavio Cobolli, Australian ninth seed Alex de Minaur and American second seed Taylor Fritz on his way to achieving his first Masters 1000 title and the biggest title of his career.