No backpacks. No open umbrellas during play. Even courtside selfies come with restrictions. Here are nine US Open rules that players and fans have to follow.

Two-time champion Naomi Osaka said that 'if you come to a sporting event, you have to respect the sport' after her match was stopped several times to tell the crowd to quieten down

Every year fans complain about crowd noise at the U.S. Open. But New York's Grand Slam reflects the spirit of the city and the growth of tennis.