Richard M. Sherman

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Seattle Seahawks cornerback Richard Sherman warms up at the start of NFL football practice Wednesday, Jan. 29, 2014, in East Rutherford, N.J. The Seahawks and the Denver Broncos are scheduled to play in the Super Bowl XLVIII football game Sunday, Feb. 2, 2014. (AP Photo/Jeff Roberson)

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Seattle Seahawks' Richard Sherman takes a picture during media day for the NFL Super Bowl XLVIII football game Tuesday, Jan. 28, 2014, in Newark, N.J. (AP Photo/Jeff Roberson)

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Deion Sanders shakes hands with Seattle Seahawks' Richard Sherman during media day for the NFL Super Bowl XLVIII football game Tuesday, Jan. 28, 2014, in Newark, N.J. (AP Photo/Jeff Roberson)

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Seattle Seahawks' Richard Sherman takes pictures during media day for the NFL Super Bowl XLVIII football game Tuesday, Jan. 28, 2014, in Newark, N.J. (AP Photo/Charlie Riedel)

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Seattle Seahawks' Richard Sherman takes some pictures during media day for the NFL Super Bowl XLVIII football game Tuesday, Jan. 28, 2014, in Newark, N.J. (AP Photo/Charlie Riedel)

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In this photo taken Aug. 17, 2013, Seattle Seahawks cornerback Richard Sherman, (25) shakes hands with Denver Broncos quarterback Peyton Manning, right, after the Seahawks beat the Broncos 40-10, in a preseason NFL football game in Seattle. The two teams square off in Super Bowl XLVIII on Sunday, Feb. 2, 2014, in East Rutherford, N.J. (AP Photo/John Froschauer)