Sinner Withdraws From Cincinnati Open: Knee Clouds US Open

The two best players in men's tennis will both miss the last tune up before the year's final major. Jannik Sinner, the world No. 1, pulled out of the Cincinnati Open with a right knee injury, joining Carlos Alcaraz, who has not played since April because of a wrist problem. The main draw starts August 13 and the US Open begins August 30, which leaves a two and a half week stretch in which neither man has a competitive hard court match on the board.

Sinner Withdraws From Cincinnati Open With a Right Knee Injury

Sinner's statement was short and specific: his right knee has been bothering him, he has been working with his medical team, and he is not ready to compete. He did not say how long the knee has been an issue. Cincinnati is the second straight North American hard court event he has skipped after pulling out of the National Bank Open, though that withdrawal was framed as precautionary rather than knee specific.

That detail matters more than the withdrawal itself. Missing one Masters 1000 is rest. Missing both in the same swing is treatment. Sinner arrives in New York, if he arrives, with no completed hard court match since the grass season ended.

Alcaraz is the defending Cincinnati champion and his absence is the longer story. The Spaniard has been out since April with a wrist injury and has now missed both North American Masters 1000 events. He beat Sinner in the 2025 Cincinnati final when the Italian retired early in the opening set, so the tournament loses its reigning champion, its second seed, and the rematch that would have sold the week.

Neither player has withdrawn from the US Open. Both remain on the entry list. That is the single most important fact for anyone pricing the major, and it is also the least reliable one, because an entry list is a statement of intent rather than a medical clearance.

What the Cincinnati Draw Looks Like Now

Alexander Zverev becomes the top seed, arriving off an early exit at the National Bank Open. Novak Djokovic plays his first event since Wimbledon, which makes Cincinnati his only competitive hard court preparation before New York. Felix Auger-Aliassime, Daniil Medvedev, Alex de Minaur, Taylor Fritz, Flavio Cobolli and Ben Shelton fill out the top of a draw that suddenly has no obvious chalk.

The draw ceremony is Tuesday, August 11, and the main draw runs through August 23. Losing both top seeds before a ball is struck is close to the maximum variance a Masters 1000 field can absorb.

Betting and DFS Impact

Three things change immediately.

First, the Cincinnati outright market loses its anchor. With the No. 1 and No. 2 players gone, the price compresses across six or seven credible contenders rather than concentrating on two. That is a market where an outright ticket has real equity and where the favorite is a rankings artifact rather than a form read. Zverev is top seed by ranking, not by recent results.

Second, Djokovic's match volume becomes the most tradeable variable of the week. He has not played since Wimbledon. A deep Cincinnati run is both a live outright angle and the strongest available signal on his US Open readiness. A first or second round exit is the opposite signal, and it would arrive roughly two weeks before the major starts.

Third, the US Open futures board is now priced on medical guesswork for the two shortest prices on it. Sinner and Alcaraz are still favorites on reputation and ranking, but neither has a hard court result to support the number. Anyone laying a short price on either is buying a rehab timeline, not a form line. If you want exposure to that major, the disciplined move is to wait for the New York practice week reporting rather than to take the current number.

For head to head and prop markets inside Cincinnati, treat the first two rounds as noisier than usual. Seeded players who have not played since Wimbledon are the classic rusty favorite trap, and this draw has several of them. Our AI sports picks model rebuilds its win probabilities as each result lands, which is exactly the condition where a form based read beats a ranking based one. For the wider futures picture, our US Open 2026 odds breakdown is the companion piece to this one.

What to Watch Next

The next real information point is the Cincinnati draw on Tuesday, followed by whether Sinner practices in New York during the week of August 24. Watch for a confirmed practice schedule rather than a statement of intent. Alcaraz's wrist is the harder read, because a layoff of almost four months from a wrist injury has a much wider range of outcomes than a knee problem that only surfaced publicly this month.

FAQ

Why did Jannik Sinner withdraw from the Cincinnati Open? Sinner cited a right knee injury. He said he has been working with his medical team but is not ready to compete. His statement did not say how long the knee has been an issue.

Is Sinner playing the US Open in 2026? He has not withdrawn and remains on the singles entry list. The US Open begins August 30. Nothing has been confirmed about his fitness beyond the Cincinnati statement.

Who is the top seed at the Cincinnati Open 2026? Alexander Zverev, after the withdrawals of Sinner and Alcaraz. Novak Djokovic headlines the rest of the field in his first event since Wimbledon.

Why is Carlos Alcaraz not playing? Alcaraz has been recovering from a wrist injury that has kept him off tour since April. He is the defending Cincinnati champion and has missed both North American Masters 1000 events.

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