The tennis superstars had a blast playing mixed doubles together at the US Open. Raducanu's reply to Alcaraz's Instagram post will have fans speculating.

Carlos Alcaraz and Emma Raducanu face off against Jessica Pegula and Jack Draper in the Mixed Doubles first round today, Aug. 19, at approximately 2:40 p.m. ET. The first day of the US Open Mixed Doubles tournament is airing on the ESPN+ streaming service.

Tennis fans got treated to pure magic at the US Open mixed doubles, but sometimes even wizardry can’t save you from a disappointing exit. Carlos Alcaraz pulled off what might be the shot of the tournament – maybe the year – leaving his partner Emma Raducanu looking like she’d just witnessed actual sorcery.

Viewers in the UK can watch the mixed doubles at the US Open live on Sky Sports Tennis. The event is being streamed on ESPN in the United States. The full 16-team field was decided by the top-8 singles rankings combined, and eight wildcard picks.

US OPEN action is HERE – with the freshly revamped mixed doubles set for a thrilling climax TODAY! Top seeds Jack Draper and Jessica Pegula will face Iga Swiatek and Casper Ruud in the first