Back at the Cincinnati Open, Jannik Sinner had to abruptly retire from the final match against Carlos Alcaraz . It wasn’t really an injury that ended the match in just 22 minutes, with Sinner trailing behind the Spaniard by 0-5. Instead, it was illness that had been bothering him. But what happened at the US Open semifinal was a different story altogether.

After Felix Auger-Aliassime won the second set, and the match stood level at 6-1, 3-6, Sinner was seen getting checked by the physiotherapist. It seemed like his abdomen was causing some trouble. Nevertheless, the world No. 1 returned to the court for the third set. Even the commentators seemed concerned. As the camera zoomed out to show Sinner re-entering the court, the commentator claimed , “It’ll be interesting if we

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