NEW YORK, NY (WCJB)-- On Sunday night in New York, Wawrinka stunned the world No. 1 and defending U.S. Open champion Djokovic 6-4, 7-5, 2-1 to advance to the quarterfinals. It was a rematch of the 2016 US Open final, which Wawrinka won in four sets.
Djokovic, who has been battling a left shoulder injury, elected to retire in the third set when Wawrinka was leading by a break, eliciting boos from the Arthur Ashe Stadium crowd.
With the loss, Djokovic, who won the Australian Open and Wimbledon earlier this year for his 15th and 16th major titles, failed to get closer to Nadal's 18 titles and Federer's 20 on the all-time men's list. He had not lost before the quarterfinals in New York since 2006 when he was 19 years old.