NEW YORK, NY - SEPTEMBER 06: Stefanos Tsitsipas of Greece returns a shot to Blake Ellis of Australia during their Junior Boys' Singles Round Two Match on Day Nine of the 2016 US Open at the USTA Billie Jean King National Tennis Center on September 6, 2016 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Alex Goodlett/Getty Images)
