Serena Williams fuels rumors of a possible mixed doubles with Alcaraz at the US Open

The possibility of seeing Serena Williams and Carlos Alcaraz team up in the mixed doubles of the US Open 2026 has gained even more strength after their recent exchange on social media. What started as mere speculation is now taking on the air of a true media operation.

It all started after Carlos Alcaraz posted a gallery of images from his training sessions with the caption "On the right path". Among the thousands of comments, one stood out: Serena Williams, who left an enigmatic message saying "They not ready".

Many fans have interpreted the message as a possible hint that they might share the court in the US Open mixed doubles, a tournament that this year will be held again in the week before the start of the singles draws, aiming to bring together some of the most media-impactful pairs in world tennis.

Serena Williams clearly teasing a US Open mixed doubles partnership with Carlos Alcaraz 👀🔥 pic.twitter.com/8hEAeCwn3m

— José Morgado (@josemorgado) July 11, 2026

Many believe Serena's message is not a coincidence but evidence that a mixed doubles partnership with Alcaraz at the US Open is in the works

The hypothesis seems plausible. Serena and Alcaraz are two of Nike's major icons, representing entirely different generations and possessing exceptional charisma on and off the court. A pair formed by them would undoubtedly be one of the tournament's major attractions.

Moreover, the American already has experience in high-profile partnerships. In 2019, she played the mixed doubles at Wimbledon with Andy Murray, while Alcaraz teamed up last year with Emma Raducanu at the US Open, a pairing that sparked much discussion in the circuit.

As of now, there is no official confirmation yet, but Serena's comment comes shortly after rumors started circulating about this potential partnership. "They not ready" has been enough to fuel fans' excitement even more, as they dream of seeing two of the most charismatic names in modern tennis on the courts of Flushing Meadows together.

If the project does move forward, the US Open mixed doubles could feature one of the most media-covered and appealing partnerships in recent memory, uniting an absolute legend of the sport with the player poised to lead the next decade in world tennis.