Robert Griffin Iii

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Washington Redskins quarterback Robert Griffin III (10) points to the stands after the Washington Redskins defeated the Dallas Cowboys 28-18 to become the NFC East champions at FedEx Field, Landover, Md., Sunday, Dec. 30, 2012. (Andrew Harnik/The Washington Times)

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Dallas Cowboys outside linebacker Anthony Spencer (93) sacks Washington Redskins quarterback Robert Griffin III (10) for a 13-yard loss in the fourth quarter at FedEx Field, Landover, Md., Sunday, Dec. 30, 2012. (Andrew Harnik/The Washington Times)

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Washington Redskins quarterback Robert Griffin III (10) stiff arms Dallas Cowboys strong safety Eric Frampton (27) as he goes out of bounds after a 17-yard run at FedEx Field, Landover, Md., Sunday, Dec. 30, 2012. (Andrew Harnik/The Washington Times)

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Washington Redskins quarterback Robert Griffin III (10) celebrates after scoring on a 10-yard run in the third quarter at FedEx Field, Landover, Md., Sunday, Dec. 30, 2012. (Andrew Harnik/The Washington Times)

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Washington Redskins quarterback Robert Griffin III (10) keeps it himself and scores on a 10-yard run in the third quarter at FedEx Field, Landover, Md., Sunday, Dec. 30, 2012. (Andrew Harnik/The Washington Times)

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Quarterback Robert Griffin III (10), third from right, and the Redskins wait to take the field before the Washington Redskins play the Dallas Cowboys at FedEx Field, Landover, Md., Sunday, Dec. 30, 2012. (Andrew Harnik/The Washington Times)

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Prior to Sunday's game, Lauren Jones of DunKurk, Md., center, shows off her t-shirt she had made from another game that depicts Washington Redskins quarterback Robert Griffin III (10) jumping in the stands with her after a touchdown. (Andrew Harnik/The Washington Times)

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Washington Redskins quarterback Robert Griffin III (10) points to the stands after the Washington Redskins defeat the Dallas Cowboys 28-18 to become the NFC East Champions at FedEx Field, Landover, Md., Sunday, December 30, 2012. (Andrew Harnik/The Washington Times)

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Washington Redskins quarterback Robert Griffin III (10) reacts as running back Alfred Morris (46) heads for a touchdown during the second half of an NFL football game against the Dallas Cowboys on Sunday, Dec. 30, 2012, in Landover, Md. (AP Photo/Richard Lipski)

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**FILE** Washington Redskins quarterback Robert Griffin III (10) and Dallas Cowboys quarterback Tony Romo (9) greet after the Redskins' 38-31 win in Arlington, Texas, on Nov. 22, 2012. (Associated Press)