The mixed doubles competition at this year’s US Open will be held earlier than normal in the hope of showcasing some of tennis’ biggest stars, but the decision has also prompted ire from players.

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