Alexander Zverev's pursuit of the world No. 1 ranking gained fresh momentum on Saturday after Jannik Sinner withdrew from the upcoming Rolex Shanghai Masters because of a persistent right knee injury, a decision the Italian announced on his Instagram account. The news landed the same day Zverev, the top seed in Beijing, took on wildcard Juncheng Shang in the second round of the China Open.
Sinner's Injury Opens the Door
Jannik Sinner’s injury-hit season took another blow on Saturday when the world No. 1 officially withdrew from the 2026 Rolex Shanghai Masters, announcing on his Instagram story that his ongoing right knee problem has left him unable to play. Having already skipped the China Open in Beijing the week before, the Italian will now miss the entire Asian swing, the latest chapter in a stop-start campaign that has kept him off the match court since he lifted the Wimbledon title in July.
In his statement, Sinner wrote, “Unfortunately, I won’t be able to play at the Rolex Shanghai Masters this year as I had hoped.” According to reporting cited in Italian media, the nature of the injury has come into sharper focus, with Sinner reportedly dealing with iliotibial band syndrome, a condition in which the band slides over the knee as the joint bends and straightens until the tissue becomes inflamed.
What Zverev Needs to Do
Despite the opening, the German still has work to do to complete the climb to the top spot. Sinner still leads the standings with 11,000 points to Alexander Zverev's 9,670, and his absence hands Zverev a clear opening to ascend to world No. 1. Zverev can move to the top of the rankings for the first time if he wins both the China Open in Beijing and the Shanghai Masters.
The Rankings Math
Zverev's rise up the standings has been built on a career-best season. Sinner's absence could boost Zverev's push to finish the season as world number one, with the German — this year's French Open and US Open champion — having emerged as the Italian's closest challenger. A deep run through Beijing followed by a strong Shanghai Masters would be enough to flip the two players' positions at the top of the sport for the first time in Zverev's career.
Beijing Draw and the Next Challenge
On court, Zverev has looked sharp through the opening rounds of the China Open. He reached the second round in Beijing by beating Cameron Norrie in straight sets, setting up a first-ever meeting with 21-year-old home wildcard Juncheng Shang, who advanced past Sebastian Baez in three sets. The all-important China Open draw also features Novak Djokovic, who remains in the hunt for a record-extending title in Beijing and looms as a potential obstacle later in the week.
The Road Ahead in Shanghai
Even if Zverev clears Beijing, the Shanghai Masters presents a loaded field that will test his bid for the top ranking. The Masters 1000 event runs from October 7-18 and features a strong field led by four-time champion Novak Djokovic, along with Alexander Zverev, Carlos Alcaraz, Daniil Medvedev, Ben Shelton, Felix Auger-Aliassime and defending champion Valentin Vacherot. Shanghai has been a happy hunting ground for Sinner in the past — he won the Shanghai title in 2024 — but his absence this year removes defending points and his most direct threat from Zverev's path.
The China Open has already produced plenty of drama away from the Zverev storyline, with the women's draw also delivering headline results this week, including Aryna Sabalenka's dominant start to her own title bid in Beijing.
What Comes Next
For Sinner, the priority now shifts to managing the knee issue with no firm timetable given for his return. The Italian was very apologetic in his statement, but did not provide any updates as to when he is likely to be back on the match court, saying only that he looks forward to being back at the Shanghai Masters next year. For Zverev, the next 48 hours in Beijing, followed by two weeks in Shanghai, now carry outsized weight: a clean run through both events would hand him the No. 1 ranking for the first time in his career, capping a season already defined by two Grand Slam titles.