Fifth seed Casper Ruud continued his under-the-radar push towards becoming the new World No. 1 at the US Open after rallying from a set down Wednesday to defeat Dutchman Tim van Rijthoven.
After dropping the first set in a tie-break, the Norwegian rebounded strongly to win 6-7(4), 6-4, 6-4, 6-4.
Ruud, who reached his first major final this year at Roland Garros, saved six of seven breaks points and withstood 52 winners – including 20 aces – from van Rijthoven and will next play the winner of Americans Tommy Paul and Sebastian Korda.
Ruud must make the US Open final to have a chance of finishing the tournament No. 1 in the Pepperstone ATP Rankings.