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Alec Baldwin and girlfriend Hilaria Thomas, left, attend Day 14 of the 2011 U.S. Open at the USTA Billie Jean King National Tennis Center on Sept. 11, 2011, in New York.
Keep clicking to see who else was spotted at the Open this week.
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Musician Tony Bennett, center, Susan Crow, second left, and Chairman of the Board and President of the USTA Jon Vegosen, right, attend Day One of the 2011 U.S. Open on Aug. 29, 2011, in New York.
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Model Brooklyn Decker watches as her husband Andy Roddick of the United States plays against Michael Russell of the United States during Day Three of the 2011 U.S. Open on Aug. 31, 2011, in New York.
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Anna Wintour, editor-in-chief of American magazine Vogue, watches Roger Federer of Switzerland play against Marin Cilic of Croatia during Day Six of the 2011 U.S. Open Sept. 6, 2011, in New York.
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Actress and singer Vanessa Hudgens attends the U.S. Open on Sept. 5, 2011, in New York.
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Actor Jason Sudeikis, left, watches play between Caroline Wozniacki of Denmark and Svetlana Kuznetsova of Russia during Day Eight of the 2011 U.S. Open on Sept. 5, 2011, in New York.
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TV host Robin Roberts attends the 2011 U.S. Open opening night ceremony on Aug. 29, 2011, in New York.
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Singer Greyson Chance attends the 2011 U.S. Open opening night ceremony Aug. 29, 2011, in New York.
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Singer Ciara attends Day Eight of the 2011 U.S. Open on Sept. 5, 2011, in New York.
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"Gossip Girl" star Blake Lively watches as Serena Williams of the United States plays against Ana Ivanovic of Serbia during Day Eight of the 2011 U.S. Open on Sept. 5, 2011, in New York.
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Actress Amanda Seyfried watches Anastasia Pavlyuchenkova of Russia play against Francesca Schiavone of Italy during Day Eight of the 2011 U.S. Openon Sept. 5, 2011, in New York.
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Talk-show host Regis Philbin and his wife, Joy, watch as Andy Roddick of the United States plays against Michael Russell of the United States during Day Three of the 2011 U.S. Open on Aug. 31, 2011, in New York.
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Sirector Spike Lee attends Day Eight of the 2011 U.S. Open on Sept. 5, 2011, in New York.
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Model Brooklyn Decker watches as her husband, Andy Roddick of the United States, plays against Michael Russell of the United States during Day Three of the 2011 U.S. Open on Aug. 31, 2011, in New York.
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Actor Matthew Perry attends the match between Rafael Nadal of Spain and Andy Murray of Great Britain during Day Thirteen of the 2011 U.S. Open on Sept. 10, 2011, in New York.
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Actor and singer Justin Timberlake attends the match between Roger Federer of Switzerland and Novak Djokovic of Serbia during Day Thirteen of the 2011 U.S. Open on Sept. 10, 2011, in New York.
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Singer Aretha Franklin, left, attends the match between Roger Federer of Switzerland and Jo-Wilfried Tsonga of France during Day Eleven of the 2011 U.S. Open on Sept. 10, 2011, in New York.
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Actress Ashley Greene attends Day 12 of the 2011 U.S. Open at the USTA Billie Jean King National Tennis Center on Sept. 9, 2011, in New York.
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Actors Ron Rifkin, left, and Bradley Cooper attend the match between Roger Federer of Switzerland and Novak Djokovic of Serbia during Day 13 of the 2011 U.S. Open on Sept. 10, 2011, in New York.
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Actress Camilla Belle attends the match between Roger Federer of Switzerland and Novak Djokovic of Serbia during Day 13 of the 2011 U.S. Open on Sept. 10, 2011, in New York.
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Actor Edward Burns and his wife, model Christy Turlington, watch the match between Serena Williams of the United States and Caroline Wozniacki of Denmark during Day Thirteen of the 2011 U.S. Open on Sept. 10, 2011, in New York.
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Talk-show host and comedian Jimmy Fallon attends the match between Roger Federer of Switzerland and Novak Djokovic of Serbia during Day 13 of the 2011 U.S. Open on Sept. 10, 2011, in New York.
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Oscar-winning actors Michael Douglas, right, and his wife, Catherine Zeta-Jones, attend the match between Roger Federer of Switzerland and Novak Djokovic of Serbia during Day Thirteen of the 2011 U.S. Open on Sept. 10, 2011, in New York.
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Actors Ben Stiller and his wife, Christine Taylor, attend the match between Roger Federer of Switzerland and Novak Djokovic of Serbia during Day 13 of the 2011 U.S. Open on Sept. 10, 2011, in New York.
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Actor Tommy Lee Jones attends the match between Serena Williams of the United States and Caroline Wozniacki of Denmark during Day 13 of the 2011 U.S. Open on Sept. 10, 2011, in New York.
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Model Bar Refaeli attends the match between Roger Federer of Switzerland and Novak Djokovic of Serbia during Day 13 of the 2011 U.S. Open on Sept. 10, 2011, in New York.
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Actor Stanley Tucci attends the match between Roger Federer of Switzerland and Novak Djokovic of Serbia during Day 13 of the 2011 U.S. Open on Sept. 10, 2011, in New York.
