World No. 2 Jannik Sinner withdrew from the Madrid Open on Wednesday due to a hip injury, handing a walkover into the semifinals to last-eight opponent Felix Auger-Aliassime.

“Jannik Sinner has withdrawn from the Madrid Open with a right-hip injury. As a result, he will not take to the court on Thursday to play his quarterfinal match against Felix Auger-Aliassime,” said a tournament statement on X.

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Sinner’s withdrawal came just minutes after world number three and two-time defending champion Carlos Alcaraz was knocked out in the quarterfinals by Andrey Rublev.