Ben Shelton ended Jannik Sinner's winning run with a 2-6 6-3 7-6 (5) victory to reach the quarter-finals of an ATP Masters 1000 tournament for the first time at the Shanghai Masters.
America's wait for a first home men's champion since Andy Roddick in 2003 will have to wait at least another year after Novak Djokovic defeated Ben Shelton in Friday's semi-finals.
Ben Shelton dispatched American compatriot Frances Tiafoe 6-2 3-6 7-6(7) 6-2 at the Arthur Ashe Stadium on Tuesday night to progress to the US Open semi-finals.
Tommy Paul got the better of fellow American Ben Shelton to reach his first grand slam semi-final at the Australian Open.