Big names fell early and unexpected teams broke through to steal the spotlight on Day 1 of U.S. Open mixed doubles play, headlining an electric opener packed with upsets and standout performances.

US OPEN action is HERE – with the freshly revamped mixed doubles underway. Venus Williams is set to feature alongside Reilly Opalenka as one of the many big names in action today. Taylor

Emma Raducanu and Carlos Alcaraz crashed out of US Open mixed doubles vs Draper and Pegula, but a slightly awkward handshake between the Brits caught the eye.

The No. 1-ranked Sinner, the defending champion in singles at Flushing Meadows, was supposed to compete in mixed doubles with Katerina Siniakova.

Sinner confirmed he came into the final struggling with illness and realised he could not continue after five games