NEW YORK, NY - SEPTEMBER 03:  A drone sits in the stands after it crashed in Louis Armstrong Stadium during the during their Women's Singles Second Round match between  Flavia Pennetta of Italy and Monica Niculescu of Romania on Day Four of the 2015 US Open at the USTA Billie Jean King National Tennis Center on September 3, 2015 in the Flushing neighborhood of the Queens borough of New York City.  (Photo by Matthew Stockman/Getty Images)