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NEW YORK -- The third time was the charm for the new retractable roof over Arthur Ashe Stadium.The U.S. Tennis Association unveiled the $150 million roof over the centerpiece court at the USTA Billie Jean King National Tennis Center on Tuesday -- after some glitches.The roof closed with ease in its first official demonstration, but tennis legend Billie Jean King tried multiple times to open it with the push of a button. Her third attempt succeeded.Matt Rossetti, president of the architectural firm that drew up the roof plan, said the issue could happen at the upcoming U.S. Open but a team of engineers would be on hand to fix it if necessary.The roof, which is the size of 17 Olympic swimming pools, will be ready when the U.S Open begins on Aug. 29. The mens final was delayed a day until Monday because of rain for five straight years from 2008-12.USTA officials had long maintained that adding a roof over Ashe wasnt feasible. But in 2013, Rossetti created a plan and the roof was added over two years.Here at the Billie Jean Tennis Center, we are making the impossible happen, USTA executive director Gordon Smith said.Moving at a top speed of 25 feet per minute, the roof over the 23,771-capacity stadium is built to close or open in under seven minutes. Twenty-two tennis courts could fit inside the 62,500 square-foot roof opening.There are already retractable roofs over the main stadiums at the sites of two other Grand Slam tournaments, Wimbledon and the Australian Open. French Open organizers also plan to add one.The Ashe roof is expected to be used only for rain, unlike the Australian Open, which also closes its roof in cases of extreme heat. The Chase name and logo will be on both the north and south sides of the roof for the U.S. Open.Ashes retractable roof features two panels atop a 6,500-ton steel superstructure and is covered to provide shade for the spectators. Some 360 LED sports lights will illuminate the roof and stadium when closed. To control humidity inside the stadium when the roof is closed, a chilled water ventilation system was installed.The U.S. Open roof is part of a $500 million-plus renovation paid for by the USTA. The renovation included adding new courts. Adrian Wilson Jersey . Anthony Calvillo, through 20 CFL seasons, was frequently invincible and largely stoic in the heat of competition. But underneath the professional exterior he was, and is, compellingly human. Cheap Arizona Cardinals Jerseys China . -- If this was Aaron Gordons final home game at Arizona, and it almost certainly was, then he went out in style. http://www.cheaparizonacardinalsjerseysauthentic.com/ . Coach Mike Munchak says Fokou stretched ligaments in his left knee Oct. 13 against Seattle, which could keep out up to five weeks even though the linebacker didnt need surgery. Pat Tillman Jersey . Pert has formerly spent time as an assistant coach with Cardiff City, Coventry City, and Bahrain mens national team. "Martyn is a highly-respected coach with experience at the top levels in England," said Whitecaps FC head coach Carl Robinson. Kurt Warner Jersey . -- New England Revolution goalkeeper Matt Reis is retiring after a 16-year career to become the goalie coach for the Los Angeles Galaxy. Midfielder Paul Pogba?made his highly anticipated debut on Friday?for Manchester United in Man Us 2-0?win over Southampton. After the m