Ladies and gentlemen, quiet please. Players are ready. Thank you.” This is a common refrain at tennis matches, especially rowdy ones, which are not particularly rowdy by the standards of almost any other major sport. It’s a line delivered by the chair umpire, the lead on-site official. Weirdly, if you think about it, the crowds aren’t dismayed at this message. Sometimes they applaud it. “Yes,” tennis crowds seem to say. “Tell us to shut up.” The US Open, one of the four biggest annual events in professional tennis, announced recently…
