NEW YORK, NY - AUGUST 26: A newly constructed partial roof covering Arthur Ashe Stadium is seen prior to the 2015 U.S. Open at USTA Billie Jean King National Tennis Center on August 26, 2015 in New York City. (Photo by Michael Heiman/Getty Images)
NEW YORK, NY - AUGUST 26: A newly constructed partial roof covering Arthur Ashe Stadium is seen prior to the 2015 U.S. Open at USTA Billie Jean King National Tennis Center on August 26, 2015 in New York City. (Photo by Michael Heiman/Getty Images)