Monica Niculescu Pictures
NEW YORK, NY - AUGUST 28: Julia Glushko of Israel holds her knee on the court during her women's singles first round match against Monica Niculescu of Romania on Day Two of the 2018 US Open at the USTA Billie Jean King National Tennis Center on August 28, 2018 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Matthew Stockman/Getty Images)