Sara Errani and Andrea Vavassori retained their US Open mixed doubles title on Wednesday, beating Iga Swiatek and Casper Ruud to claim the $1 million top prize in the new-look competition that kicked off action at the last Grand Slam of the year.

This wasn’t just a victory for Sara Errani and Andrea Vavassori. Their US Open mixed doubles title also felt like a victory for all doubles tennis players.

Iga Swiatek and Casper Ruud will play defending champions Sara Errani and Andrea Vavassori on Wednesday night for the U.S. Open mixed doubles title and $1 million. Swiatek and Ruud, the No. 3 seeds, beat top-seeded Jessica Pegula 3-5,