US Open: Djokovic Bundled Out, Federer Blows Past Goffin

Defending champion Novak Djokovic retired from his US Open match Sunday after dropping the first two sets to Stanislas Wawrinka, sending the Swiss three-time Grand Slam champion into the quarterfinals.

Djokovic, who won four of the past five Slam crowns and 16 overall, was in pain from a nagging left shoulder injury while 34-year-old Wawrinka, who also beat Djokovic in the 2016 US Open final, was in blistering form.

“It helped me big time knowing I have the game to beat him on that court,” Wawrinka said.

“It’s never the way you want to finish a match. I’m sorry for Novak. He’s an amazing champion.”

Reacting to the loss, world no 1 Djookovic said: “It’s frustrating. Very frustrating.

Daniil Medvedev, a winner at Cincinnati and runner-up at Montreal and Washington in hardcourt tuneup events, advanced to face Wawrinka by beating 118th-ranked German qualifier Dominik Koepfer 3-6, 6-3, 6-2, 7-6 (7/2).

“He’s a great athlete playing super good tennis,” Wawrinka said. “I’m sure it will be a great match.”

Roger Federer, a five-time US Open champion with 20 Slam titles, advanced to the US Open quarterfinals for the 13th time by routing Belgian 15th seed David Goffin 6-2, 6-2, 6-0 in only 79 minutes.

The 38-year-old Swiss third seed next faces Bulgaria’s Grigor Dimitrov, who dispatched Australia’s 38th-ranked Alex de Minaur 7-5, 6-3, 6-4.