Bob Bryan of United States, left, and Mike Bryan of United States fool around during their ATP World Tour Finals doubles tennis match against Aisam-Ul-Haq Qureshi of Pakistan and Jean-Julien Rojer of the Netherlands at the O2 Arena in London Thursday, Nov. 7, 2013. (AP Photo/Sang Tan)

Britain Tennis ATP Finals

Bob Bryan of United States, left, and Mike Bryan of United States fool around during their ATP World Tour Finals doubles tennis match against Aisam-Ul-Haq Qureshi of Pakistan and Jean-Julien Rojer of the Netherlands at the O2 Arena in London Thursday, Nov. 7, 2013. (AP Photo/Sang Tan)

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