At the very end of the his 3-set win over Frances Tiafoe, Stan Wawrinka injured his back and had to withdraw from his much-anticipated quarterfinal against friend against countryman Roger Federer in Basel.
Wawrinka won the match 6-3, 3-6, 7-5 but the lower back injury he sustained in the final game has forced him out of the event.
No. 3 seed Stefanos Tsitsipas held off qualifier Ricardis Berankis 6-7(4), 6-2, 6-4 to reach his 13th quarterfinal of the year.
“I think in the first set I kind of lost the momentum and the tempo in the tiebreak. I didn’t feel very comfortable. Perhaps my return was something that kept me doubting and not really playing with psychological strength,” Tsitsipas said. “I did manage to stay calm and I think the second set was perfect. I did manage to break him twice. This gave me extra confidence on pursuing something similar in the next couple of games. I got the early break and managed to hold my serve in the entire rest of the set.”
Up next for Greek is Filip Krajinovic who ousted Fabio Fognini 6-2, 6-4. The winner will face Federer on Saturday.
American giant Reilly Opelka outlasted David Goffin 6-7(4), 7-6(4), 7-5. He’ll now face Roberto Bautista Agut.
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