John Isner holds his shirt in his teeth during his match against Dmitry Tursunov, from Russia, at the Citi Open tennis tournament, Saturday, Aug. 3, 2013, in Washington. (AP Photo/Alex Brandon)
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John Isner holds his shirt in his teeth during his match against Dmitry Tursunov, from Russia, at the Citi Open tennis tournament, Saturday, Aug. 3, 2013, in Washington. (AP Photo/Alex Brandon)
