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Tennys Sandgren, 21, won six titles on the USTA Futures Circuit in 2012, sweeping the singles and doubles championships in Little Rock, Ark., winning singles titles in Calabasas, Calif., and Tampa, Fla., and claiming victories in doubles at consecutive events in Brownsville, Texas, and Harlingen, Texas. Sandgren also had success at the Challenger level, winning the doubles title in Sacramento, Calif., and reaching the doubles final in Lexington, Ky.