Fans anticipating a Sincaraz US Open final had a right to be concerned when Jannik Sinner called for a medical timeout during his semifinal against Félix Auger-Aliassime. He was left clutching his abdomen after dropping the second set but returned to the court, regained his rhythm, and sealed the win in four sets (6-1, 3-6, 6-3, 6-4).  Sinner addressed the timeout in his post-match press conference, offering reassurance, yet questions about his fitness lingered ahead of the final.

His coach, Simone Vagnozzi, has now responded to those concerns in an interview with UbiTennis and clarified that there’s no issue with Sinner’s health ahead of the final. Journalist and Tennis commentator, José Morgado, re-shared the same update on his X account. “He had some abdominal discomfort at one point, but after treatment with the physiotherapist, it’s gone away. I don’t think it’s anything serious. He’s very calm ahead of Sunday,” the coach had explained. 

The treatment allowed Sinner to gradually raise the intensity of his serve and outplay Felix in sets three and four, extending his hard-court dominance at Majors. Confident in his player’s recovery, Vagnozzi added: “I think he’ll be pretty comfortable for Sunday.”  And yet, And yet, the last part of the update: “No practice scheduled today, though work may have continued indoors, away from the public eye,” did renew some concerns even though Sinner has previously shown that skipped sessions don’t necessarily dent his performance.

Take the 2025 Australian Open. On the morning of his quarterfinal, Sinner admitted he felt off and didn’t even bother to warm up before walking on court. The Melbourne heat had already drained him, and he looked shaky enough that a 12-minute medical timeout raised alarm bells. Still, once play resumed, he steadied himself and outlasted Holger Rune in four sets. From there, he kept his momentum all the way through the tournament, closing out the match 6-3, 3-6, 6-3, 6-2, and lifting his first Australian Open trophy– despite the rough start. Then there was Wimbledon 2025.

A fall left him with an elbow scare, serious enough that he canceled his outdoor practice the next day. But instead of doing nothing, Sinner and his team improvised. Co-coach Darren Cahill and Simone Vagnozzi fed him balls in a short indoor session, just to keep his timing sharp while protecting the injury. The approach worked: Sinner went on to recover and later beat Carlos Alcaraz in the final. Yet, Vagnozzi acknowledged that beating Alcaraz again will be no simple task. 

The Spaniard is going to seekpayback after their Wimbledon final. “It will still be a very tough match, as always,” he said. “Carlos will definitely try to do something different than in the Wimbledon final, so we need to prepare. It will be important to write down some tactical ideas. Then we need to go play, enjoy it, go out on court with the confidence of having played a great tournament, push hard, and see how it goes.”

Speaking on the timeout in the on-court post-match interview, Sinner himself had said, “Nothing too bad..It’s nothing serious… Sunday is a very special day, amazing final again. Let’s see what’s coming…”

Now, it remains to be seen whether Sinner will be at full strength when he faces Alcaraz in the US Open final. The two last met at the Cincinnati Open, where Sinner was forced to retire mid-match due to illness.

Since then, though, he’s looked sharp. He took some time away from the tour before heading to New York, and over the past two weeks, he’s shown little trace of that setback, cruising through most of his matches with relative ease. The final will reveal whether the skipped practice is a genuine concern or just another precaution in a season where Sinner has already proven he can push through. To know how the Sincaraz final goes, you can follow along with the EssentiallySports Live Blog!