The U.S. Open’s mixed doubles trial run has started, and so far it seems to be well received by New York.

Fans packed the lower bowl of Louis Armstrong Stadium, which is free to enter for the newly formatted two-day tournament, to see Venus Williams play in her first mixed doubles match since the 1998 U.S. Open and debut in a Grand Slam event after a two-year hiatus.

They chanted, “Here we go Venus, here we go” as she and fellow American Reilly Opelka tried to make a comeback over Karolina Muchova and Andrey Rublev but fell short 4-2, 5-4 (4).

Arthur Ashe Stadium, which fans have to pay to enter, was mostly half full when the stadium kicked off the day with a matchup between Naomi Osaka-Gael Monfils and victors Caty McNally-Lorenzo Musetti.