US Open LIVE: Sabalenka and Djokovic in tie-break before Williams and Alcaraz team up in mixed doubles

The US Open is underway with Aryna Sabalenka and Novak Djokovic both involved in tie-break situations in their respective matches. A highlight of the day's action is a star-studded mixed doubles pairing featuring Serena Williams and Carlos Alcaraz competing together. The tournament features a range of high-profile players across both singles and mixed doubles events.