The U.S. Open is moving its mixed doubles championship to the week before the tournament begins, hoping a revamped format and $1 million prize will persuade top singles players to chase a Grand Slam d

The U.S. Open is making a big bet on the potential of mixed doubles, changing the format in ways that will draw curiosity and controversy.

The U.S. Open's revamped mixed doubles format is a "profound injustice" that disrespects the players, reigning champions Sara Errani and Andrea Vavassori have said.

The U.S. Open is moving its mixed doubles championship to the week before singles play begins, hoping a revamped format and $1 million prize will persuade top