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

Sara Errani and Andrea Vavassori have criticized the revamped U.S. Open tournament, which will let players enter based on singles ranking.