New York: Top-ranked defending champion Novak Djokovic retired with a shoulder injury after dropping the first two sets of Sunday’s US Open last-16 match against Stan Wawrinka.
Swiss 23rd seed and 2016 champion Wawrinka led Djokovic 6-4, 7-5, 2-1 when the Serb quit, having received treatment on his troublesome left shoulder before the start of the third set.
“It’s never the way you want to finish a match. I’m sorry for Novak. He’s an amazing champion,” Wawrinka said.