Georgia running back Todd Gurley (3) gets away from North Texas defensive back James Jones (13) as he runs for a touchdown in the first half of an NCAA college football game Saturday, Sept. 21, 2013 in Athens, Ga. (AP Photo/John Bazemore)

Florida State running back Karlos Williams (9) runs for a first down past North Carolina State cornerback Marchez Coates (3) on a fake punt in the second quarter of an NCAA college football game on Saturday, Oct. 26, 2013, in Tallahassee, Fla. (AP Photo/Phil Sears)

Wisconsin running back Melvin Gordon (25) carries the ball during the second half of an NCAA college football game against Iowa, Saturday, Nov. 2, 2013, in Iowa City, Iowa. Wisconsin won 28-9. (AP Photo/Charlie Neibergall)

Texas running back Malcolm Brown (28) scores a touchdown against Oklahoma State safety Daytawion Lowe (8) during the second quarter of an NCAA college football game Saturday, Nov. 16, 2013, in Austin, Texas. (AP Photo/Michael Thomas)

Nebraska running back Ameer Abdullah (8) gets past Penn State defensive end C.J. Olaniyan (86) during the fourth quarter of an NCAA college football game against Penn State in State College, Pa., Saturday, Nov. 23, 2013. Nebraska won 23-20. (AP Photo/Gene J. Puskar)

Michigan State's Jeremy Langford (33) runs out of the tackle of Ohio State's Corey Brown (3) for a 26-yard touchdown run during the fourth quarter of an Big Ten Conference championship NCAA college football game Saturday, Dec. 7, 2013, in Indianapolis. (AP Photo/Michael Conroy)

South Carolina running back Mike Davis (28) rushes past Florida's Brian Poole (24) during the first half of an NCAA college football game Saturday, Nov. 16, 2013, at Williams-Brice Stadium in Columbia, S.C. South Carolina won 19-14. (AP Photo/ Richard Shiro)

University of Miami Hurricanes running back Duke Johnson (8) rushes for a gain during an NCAA football game against the Georgia Tech Yellow Jackets at Sun Life Stadium on Saturday October 5, 2013 in Miami Gardens, Florida. University of Miami won 45-30. (Aaron M. Sprecher/NFL)

Alabama running back T.J. Yeldon (4) leaps past an attempted tackle by Mississippi State defensive back Will Redmond, right, as defensive back Kendrick Market (26) closes in during the first quarter of an NCAA college football game in Starkville, Miss. on Nov. 16, 2013. (AP Photo/Rogelio V. Solis, file)

Alabama Crimson Tide running back Derrick Henry (27) runs for a touchdown during the Sugar Bowl NCAA college football game against the Oklahoma Sooners at the Mercedes-Benz Superdome on Thursday January 2, 2014 in New Orleans, Louisiana. Oklahoma won 45-31. (Aaron M. Sprecher/NFL)