Top seed and defending champion John Isner will take on former world number one Lleyton Hewitt in the final of the ATP Hall of Fame Championships.

America’s Isner fired 11 aces in a 7-6 (7/4), 6-3 victory over sixth-seeded compatriot Ryan Harrison, while Hewitt reached his first ATP final in more than two years with a 6-4, 5-7, 6-2 victory over 2009 Newport champion Rajeev Ram.