The retractable roof over Arthur Ashe Stadium in the closed position at the USTA Billie Jean King National Tennis Center August 2, 2016 in New york. / AFP / DON EMMERT        (Photo credit should read DON EMMERT/AFP/Getty Images)
U.S. Open 2016: $150 million roof gives slam new look
What you need to know about the new roof that will shelter Arthur Ashe stadium from the rain.
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The retractable roof over Arthur Ashe Stadium in the closed position at the USTA Billie Jean King National Tennis Center August 2, 2016 in New york. / AFP / DON EMMERT        (Photo credit should read DON EMMERT/AFP/Getty Images)
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NEW YORK, NY - SEPTEMBER 13:  Novak Djokovic of Serbia celebrates with the winner's trophy after defeating Roger Federer of Switzerland during their Men's Singles Final match on Day Fourteen of the 2015 US Open at the USTA Billie Jean King National Tennis Center on September 13, 2015 in the Flushing neighborhood of the Queens borough of New York City. Djokovic defeated Federer 6-4, 5-7, 6-4, 6-4.  (Photo by Maddie Meyer/Getty Images)
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