The US Open receives strong criticism following its decision to hold its mixed doubles competition as a standalone event before the start of the Slam.

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's plan to make its mixed doubles championship a smaller, shorter event aimed at persuading top singles players to compete was criticized Tuesday by doubles specialists who figure to get shut out of the new format.