But in an effort to expand the reach of one of the biggest annual sporting events in the world, the United States Tennis Association opted to shift the event a full five days before main draw singles action gets underway.

The much-talked-about pairing of Emma Raducanu and Carlos Alcaraz fell to an early exit in the US Open’s mixed doubles competition on Tuesday, losing their first-round match and failing to win a set.

The new event wanted to use singles stars to put mixed doubles on a pedestal. Two masters of the discipline have stolen the show.

Grand Slam singles champions such as Jannik Sinner, Carlos Alcaraz, Iga Swiatek and Madison Keys will be playing for extra money — $1 million to the winning duo — and trying to get their hands on a trophy in the U.

Here's what to know about the 2025 U.S. Open Tennis Championships at the Billie Jean King National Tennis Center in Flushing, New York.