Jannik Sinner won another match at the 2025 
Paris Masters, but his health remains a concern after struggling with an injury.
 Sinner has returned to winning ways during the Asian swing, and he then translated his form to indoor hard courts as well. The Italian first won the title at the China Open in Beijing, but what followed was his retirement from his third-round match at the Shanghai Masters against Tallon Griekspoor.
The world No. 2 was able to forget those struggles to win the Six Kings Slam, an exhibition in Riyadh, Saudi Arabia, for which he pocketed $6 million. He then also won the Vienna Open, but his physical struggles returned at the Paris Masters.
Sinner appeared to be struggling physically during his third-round win against Francisco Cerundolo. Although he never called for a medical timeout, it was more than obvious that the second seed was not feeling well.
After the match, Sinner confirmed that he wasn't at 100%, and that he will try to recover in between the matches to bring a better level to his quarter-final match, as he's still fighting for the world No. 1 spot after Carlos Alcaraz's shocking opening-round loss.
"I was up twice with the break in the first set, and I could not convert. I put myself in not an easy situation, but I am happy with how I ended the match and I felt much better. Hopefully, it will give me the confidence to start off in a good way tomorrow. Hopefully, I can recover physically, which is my main priority. Today was a great match and a great performance from my side."
"I'm trying to manage it in the best way, but it’s clear that I’m not at 100%. I felt today’s match was a little less physical, which is good for me. I’m happy to have won it in two sets, in under an hour and a half. I’ll sleep very well tonight."
Jannik Sinner will have to face challenging opponents if he wants to win the Paris Masters title
Sinner was an overwhelming favorite against both of his opponents in the first two rounds of the 
ATP Masters 1000 event in Paris. If he wants to win the title, the opposition won't get any easier, quite the opposite.
Sinner's quarter-final opponent will be Ben Shelton, who is already an ATP Masters 1000 champion and will want to add another title in the French capital. If the Italian passes that test, he will face the winner of the match between Daniil Medvedev and Alexander Zverev.
Medvedev is a former world No. 1 player and a Grand Slam champion, while Zverev is a two-time ATP Finals winner and a seven-time ATP Masters 1000 champion. Both could be a huge test for Sinner, especially if he struggles with his health.