Jannik Sinner gives health update at Shanghai Masters after awkward problem

Jannik Sinner has already arrived in Shanghai to defend his title, just one day after being crowned the China Open champion. The world No. 2 raised some concerns in Beijing when he admitted to dealing with some awkward stomach troubles, but he stormed past Learner Tien in Wednesday's final to claim the trophy.

Sinner is now looking ahead to the Shanghai Masters, where he is the reigning champion, and hopes his health issues won't come back to haunt him.

After beating Alex de Minaur in the Beijing semi-final earlier this week, Sinner revealed: "It's nothing serious.

"I had some diarrhoea the last couple of days. I lost some liquids. But I feel good. Was also a bit of tension. The mix of tension and the past couple days were not easy."

The Italian bounced back to seal a 6-2 6-2 victory over Tien in the final before jetting straight to Shanghai. Arriving on-site on Thursday, Sinner gave a positive update on his health, but admitted he didn't know how he'd feel in a match.

"Yeah, I feel good. I said it before the final that I'm ready for the final, and so it was. Here, it's different. It's more humid, it's hotter," he said.

"I don't know how it's going to feel on court, but, you know, today I have one day where I can rest, and tomorrow I am going to have more feedback for my body and mind, and trying to prepare for the first round match, then we'll see how it goes.

"I'm looking forward to it. It's a great challenge. You know, playing first round matches are never easy, so let's see what's coming, and hopefully I can show some good tennis here."

Sinner also had a quick turnaround from Beijing to Shanghai last year after losing to Carlos Alcaraz in the China Open final. But it didn't bother him, and he went on to win the Shanghai Masters, beating Novak Djokovic in the championship match.

Still, the world No. 2 knows it will be a challenge to be ready in time for Saturday's clash with Daniel Altmaier.

He added: "Of course, conditions are definitely different than Beijing, so I have only one practice session to get ready, but let's see.

"It's going to be a very, very difficult and tough challenge, especially the first round match. You never know what's going to happen, so let's see. But obviously I'm very happy to be back here and play in front of Shanghai fans."