World number one Jannik Sinner has withdrawn from next week's Shanghai Masters, extending an absence from competitive tennis that stretches back to his Wimbledon triumph in July. The 25-year-old Italian confirmed the decision in an Instagram post on Saturday, apologising to fans and conceding that the knee injury which has derailed his summer and autumn is still not healed.
Table of Contents
- The announcement
- A season interrupted at its peak
- Three months, zero matches
- The No. 1 ranking is now in play
- Shanghai without its champion
- What comes next for Sinner
- Key takeaways
- Sources
- Read more on Chronicle
The announcement
"Unfortunately, I won't be able to play at the Rolex Shanghai Masters this year as I had hoped," Sinner wrote on Instagram on Saturday. "I always enjoy playing in front of the Shanghai fans and I'm very sorry that I won't be able to do so next week. Thank you for all your support. I'm looking forward to seeing you again next year."
The post, shared on his Instagram Story just days before the Masters 1000 event begins on October 7, offered no timeline for his return and no further medical detail. It was the latest in a string of quiet exits — Beijing's China Open came and went without him, and the entire North American hardcourt swing was missed entirely. Each withdrawal has been delivered in the same understated tone; collectively, they now amount to the most significant injury absence of the Italian's career, Reuters reported.
A season interrupted at its peak
To grasp what tennis is missing, rewind to July. Sinner arrived at the All England Club in imperious form and left with his fifth Grand Slam title, beating Alexander Zverev in the Wimbledon final. It was supposed to be a coronation summer — the first half of the year had confirmed him as the dominant force in the men's game, a player combining surgical baseline precision with a serve that had grown into a genuine weapon.
Instead, Wimbledon was the last time he was seen on a match court. The right knee injury, picked up during the Championships and aggravated in training afterwards, has kept him out for almost three months. According to the Italian press, Sinner consulted a knee specialist in Lyon on Friday, a day before the Shanghai announcement — a sign that the camp is still working through the problem rather than closing in on a comeback date, as Flashscore noted.
Three months, zero matches
The roll call of what he has missed is staggering for a reigning world number one: Montreal, Cincinnati, the US Open — where he was the defending champion — and the ATP 500 in Beijing, another title defence he surrendered without striking a ball. By any normal measure of a season, that would be a career-ending stretch of absences. That Sinner remains at the top of the rankings speaks to the size of the cushion he built before Wimbledon, and to how much of it he is now bleeding away.
The Italian has compiled a 44–3 win-loss record across six titles in 2026, but points from those triumphs are expiring. Withdrawing from Shanghai costs him only 50 ranking points in the short term, but the ledger for the remainder of the season is far more punishing. In the closing months of 2025, Sinner won the Beijing 500, the Vienna 500, the Paris Masters 1000 and the ATP Finals in Turin — the latter alone worth 1,500 points. Every week he spends off court, that mountain of defending points turns into a countdown.
The No. 1 ranking is now in play
The beneficiary of Sinner's silence is standing very close behind him. Alexander Zverev, the 29-year-old German, has emerged as the Italian's closest challenger — and arguably the form player of the year. Zverev won the first two Grand Slam titles of his career in 2026, at the French Open and the US Open, reached the semi-finals in Melbourne and finished runner-up to Sinner at Wimbledon. Just 1,370 points separate the two at the top of the rankings.
Crucially, Zverev was far less effective at the end of last season, which means he has room to add points where Sinner can only lose them. Win the China Open in Beijing this week and follow it up with the Shanghai Masters, and Zverev would rise to world number one for the first time in his career — a landmark neither Roger Federer, Rafael Nadal nor Novak Djokovic prevented him from reaching across the years, but which always seemed just out of grasp.
"I always enjoy playing in front of the Shanghai fans," Sinner wrote. The unspoken subtext: by the time the Asian swing is over, someone else may be occupying his seat.
Shanghai without its champion
The tournament itself loses a star but hardly lacks for depth. The field for October 7–18 is led by four-time champion Novak Djokovic, alongside Zverev, Carlos Alcaraz, Daniil Medvedev, Ben Shelton, Félix Auger-Aliassime and defending champion Valentin Vacherot. Sinner lifted the Shanghai trophy in 2024, defeating Djokovic in the final, so his absence opens a hole in the draw that the Serb, in particular, will be eager to exploit.
Shanghai is the only Masters 1000 event of the Asian swing and traditionally one of the tour's most cosmopolitan stops — a fitting stage for the battle for number one to reach its decisive phase. Instead, that battle will play out, at least partly, in a room Sinner has vacated.
What comes next for Sinner
The calendar after Shanghai offers few soft landings. Vienna and Paris — both titles he is defending — arrive in quick succession, followed by the ATP Finals in Turin, where he is the defending champion on home soil. The pressure to return in time for the year-end championship, played in front of an adoring Italian crowd, must be enormous. But rushing back from a knee injury that has already cost him three months would risk something far worse than losing the top ranking.
Sinner's participation in the Six Kings Slam exhibition in Riyadh later in October is also now in doubt, and his camp has offered no indication of which event, if any, he is targeting for his return. For a player who has made winning look inevitable all year, the sudden uncertainty is its own kind of drama — and the defining subplot of the autumn tennis season.
Key takeaways
- Jannik Sinner withdrew from the October 7–18 Shanghai Masters on Saturday, citing a knee injury that has kept him out since his Wimbledon title in July.
- The 25-year-old Italian has missed the entire North American hardcourt swing, including the US Open and Beijing's China Open.
- Alexander Zverev, the French Open and US Open champion, can claim the world No. 1 ranking for the first time by winning Beijing and Shanghai.
- Sinner is defending a huge haul of points in the season's final weeks, including the ATP Finals title in Turin.
- His return date remains unknown after consulting a knee specialist in Lyon on Friday.
