At the US Open 2026, the high-profile mixed doubles pairing of Carlos Alcaraz and Serena Williams faces a daunting opening test against an experienced doubles pair, Erin Routliffe and Lloyd Glasspool, according to tournament scheduling.
High-Profile Debut Meets Tour-Tested Specialists
When Carlos Alcaraz and Serena Williams step onto the Flushing Meadows hard courts for their mixed doubles campaign, they will do so against a formidable duo. Following the conclusion of the qualifying rounds, tournament organizers confirmed that Routliffe and Glasspool secured their spot as the first-round opponents for the tournament’s most media-covered pairing, according to reports.
The matchup brings together two players making notable returns or transitions alongside a pair currently operating at peak form on the professional circuit. Serena Williams stepped back onto the competitive stage a little over a month prior to the tournament following a nearly four-year hiatus, while Alcaraz arrived in New York following a four-and-a-half-month recovery period from injury, according to tour tracking. For Alcaraz, the mixed doubles fixtures serve as valuable match practice to build rhythm ahead of the rigorous singles draw and a shot at the tournament’s million-dollar prize incentive.
Momentum and Head-to-Head Context
Routliffe and Glasspool enter the encounter carrying substantial momentum from the hard-court swing. Both players captured doubles titles in Washington just prior to arriving in New York—Routliffe and Glasspool each triumphed alongside their respective tour partners, according to reports.
Familiarity also marks the contest. Routliffe, widely regarded as one of the elite doubles specialists on the WTA Tour, has faced Serena Williams previously during the grass-court season in women’s doubles matches at Queen’s and Berlin. Those prior meetings split evenly, with one victory apiece, adding an intriguing tactical layer to their first mixed doubles meeting.
Tough Draw for Djokovic and Sabalenka
Siniakova, the world number one in women’s doubles, and Patten, who commands the top ranking in men’s doubles alongside Harri Heliovaara, enter the draw as among the clear favorites alongside the tandem of Sara Errani and Andrea Vavassori.

Tournament Outlook and Next Steps
What are your thoughts on this blockbuster mixed doubles draw? Join the conversation in the comments below and share how you think Alcaraz and Serena will handle the test.