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Quarterback Geno Smith #7 of the New York Jets relaxes during New York Jets Rookie Minicamp at the Atlantic Health Jets Training Center on May 11, 2013 in Florham Park, New Jersey. (Photo by Al Pereira/New York Jets/Getty Images)

Jay-Z's Roc Nation Sports client list

Jay-Z founded his sports agency this year and has already made aggressive moves in the sports world. In a few months he has managed to develop a strong client list of powerful athletes.