Fans enduring a lengthy wait to get into the U.S. Open final booed and chanted “Let us in.

The U.S. Open is starting a day earlier than usual.

The U.S. Tennis Association has acknowledged the wrong call was made during a third-round U.S. Open match between Anna Kalinskaya and Beatriz Haddad Maia because the chair umpire was not given every relevant replay of the point by the video review official.