California wide receiver Keenan Allen, right, is tackled by Southern California linebacker Chris Galippo during the first half of an NCAA college football game in Los Angeles, Saturday, Oct. 16, 2010. (AP Photo/Chris Carlson)

Clemson Tigers wide receiver Mike Williams (7) reacts after scoring a touchdown in the second half as Alabama Crimson Tide defensive back Marlon Humphrey (26) looks on during the NCAA Playoff National Championship game, Monday, Jan. 9th, 2017 in Tampa,fl. (Logan Bowles via AP Images)

Southern California linebacker Hayes Pullard looks on during the second half of an NCAA college football game against California, Thursday, Nov. 13, 2014, in Los Angeles. (AP Photo/Mark J. Terrill)

LSU players Joseph Barksdale, left, and Kelvin Sheppard carry the Cotton Bowl championship trophy after winning the NCAA college football game against Texas A&M 41-24, Friday, Jan. 7, 2011, in Arlington, Texas. (AP Photo/Tony Gutierrez)

Florida quarterback John Brantley (12) is sacked by South Carolina defensive tackle Melvin Ingram (6) during the first half of an NCAA college football game in Gainesville, Fla., Saturday, Nov. 13, 2010. (AP Photo/Phil Sandlin)

Illinois State quarterback Matt Brown (13) scrambles under pressure from Illinois' Corey Liuget (93) during the first half of an NCAA college football game at the University of Illinois in Champaign, Ill., Saturday, Sept. 12, 2009. (AP Photo/Seth Perlman)

Notre Dame Fighting Irish defensive lineman Isaac Rochell (90) during an NCAA Football regular season game against the Texas Longhorns on Sunday, Sept. 4, 2016 in Austin, Texas. (Ric Tapia via AP)

Wisconsin running back Melvin Gordon (25) on his way to a 53-yard touchdown during the third quarter of the Outback Bowl NCAA college football game Thursday, Jan. 1, 2015, in Tampa, Fla. (AP Photo/Chris O'Meara)

UCLA quarterback Brett Hundley (17) is sacked by California linebacker Chris McCain (40) during the first half of an NCAA college football game in Berkeley, Calif., Saturday, Oct. 6, 2012. (AP Photo/Tony Avelar)

Arkansas tight end Hunter Henry carries in the first half of an NCAA college football game in Fayetteville, Ark., Friday, Sept. 6, 2014. (AP Photo/Sarah Bentham)

Texas safety Adrian Phillips (17) tackles Brigham Young quarterback Taysom Hill (4) in the first half during an NCAA college football game Saturday, Sept. 7, 2013, in Provo, Utah. (AP Photo/Rick Bowmer)

Ohio State defensive lineman Joey Bosa plays against Minnesota during an NCAA college football game Saturday, Nov. 7, 2015, in Columbus, Ohio. (AP Photo/Jay LaPrete)

Florida State cornerback Greg Reid (5) closes in on Miami wide receiver Travis Benjamin (3) during the first quarter of an NCAA college football game on Saturday, Nov. 12, 2011, in Tallahassee, Fla. Florida State won 23-19. (AP Photo/Phil Sears)

Navy quarterback Keenan Reynolds (19) pitches the ball past Notre Dame linebacker James Onwualu (17) during the first half of an NCAA college football game, Saturday, Oct. 10, 2015, in South Bend, Ind. (AP Photo/Jeff Haynes)

North squad offensive guard Dan Feeney of Indiana (67) lines up for a play during the second half of the Senior Bowl NCAA college football game, Saturday, Jan. 28, 2017, at Ladd-Peebles Stadium in Mobile, Ala. (AP Photo/Butch Dill)

Georgia Tech's Jeremiah Attaochu (45) warms up prior to an NCAA college football game in Durham, N.C., Saturday, Sept. 14, 2013. (AP Photo/Gerry Broome)

Massachusetts's Randall Jette tackles Wisconsin's Derek Watt (34) short of the end zone during the first half of an NCAA college football game Saturday, Aug. 31, 2013, in Madison, Wis. (AP Photo/Morry Gash)

California's Brandon Mebane, right, and Rulon Davis (94) celebrate after Mebane sacked Portland State quarterback Rob Freeman (12) during the second half of their college football game in Berkeley, Calif. on Saturday, Sept. 16, 2006. Portland State's Brennan Carvalho (55) is in the background. California won, 42-16. (AP Photo/Benjamin Sklar)

Vanderbilt defensive back Casey Hayward (19) intercepts a pass intended for Eastern Michigan tight end Josh LeDuc (89) in the fourth quarter of an NCAA college football game on Saturday, Oct. 9, 2010, in Nashville, Tenn. (AP Photo/Joe Howell)

Central Michigan defensive back Jahleel Addae (4) watches the play during the second half of the Little Caesars Pizza Bowl NCAA college football game against Western Kentucky at Ford Field in Detroit, Wednesday, Dec. 26, 2012. (AP Photo/Carlos Osorio)

Alabama defensive lineman Damion Square during the second half of the BCS National Championship college football game against LSU Monday, Jan. 9, 2012, in New Orleans. (AP Photo/Dave Martin)

Miami Hurricanes Denzel Perryman plays in a game against the Florida State Seminoles at Sun Life Stadium in Miami,on October 20, 2012. ( AP Photo/Tom DiPace)

Utah offensive tackle Sam Tevi (52) blocks BYU offensive lineman Corbin Kaufusi, right, in the second half during an NCAA college football game Saturday, Sept. 10, 2016, in Salt Lake City. Utah won 20-19. (AP Photo/Rick Bowmer)

Utah defensive tackle Tenny Palepoi (91) sacks Utah State quarterback Chuckie Keeton, left, in the second half during an NCAA football game Thursday, Aug. 29, 2013, in Salt Lake City. Utah defeated Utah State 30-26. (AP Photo/Rick Bowmer)

Penn State cornerback Trevor Williams (10) breaks up a pass intended for Syracuse wide receiver Adrian Flemming (22) during the third quarter of an NCAA college football game Saturday, Aug. 31, 2013, in East Rutherford, N.J. Penn State won 23-17. (AP Photo/Bill Kostroun)

Vanderbilt center Spencer Pulley (77) plays against Austin Peay in the second half of an NCAA college football game Saturday, Sept. 19, 2015, in Nashville, Tenn. Vanderbilt won 47-7. (AP Photo/Mark Humphrey)

North Carolina's Tre Boston (10) intercepts a pass in the end zone during the first half of an NCAA college football game against Middle Tennessee in Chapel Hill, N.C., Saturday, Sept. 7, 2013. (AP Photo/Gerry Broome)

Arkansas's Darius Philon (91) celebrates a sack of Texas quarterback Tyrone Swoopes during the first half of the Texas Bowl NCAA college football game Monday, Dec. 29, 2014, in Houston. (AP Photo/David J. Phillip)

FILE - In this Oct. 31, 2009, file photo, Oklahoma State offensive lineman Russell Okung, right, blocks Texas defensive end Eddie Jones, left, during the fourth quarter of an NCAA college football game in Stillwater, Okla. Okung is a top prospect in the NFL draft. (AP Photo/Sue Ogrocki, File)

Iowa defensive back Desmond King (14) leaps over a defender during a kickoff return in the second half of an NCAA college football game against Wisconsin, Saturday, Oct. 22, 2016, in Iowa City, Iowa. Wisconsin won 17-9. (AP Photo/Charlie Neibergall)

Miami defensive back Rayshawn Jenkins (26) covers a play against West Virginia during the second half of the Russell Athletic Bowl NCAA college football game, Wednesday, Dec. 28, 2016, in Orlando, Fla. Miami won 31-14. (AP Photo/John Raoux)

North Carolina State quarterback Philip Rivers (17) drops back to pass during his team's 17-15 win over Clemson on Thursday, Oct. 16, 2003, in Raleigh, N.C. (AP Photo/Grant Halverson)

Western Kentucky offensive linesman Forrest Lamp (76) and Army defensive end Jarrett Mackey (34) during the second half of an NCAA college football game Saturday, Nov. 9, 2013, in West Point, N.Y. (AP Photo/Hans Pennink)

Texas A&M punter Drew Kaser (38) punts the ball against Alabama during the first half of an NCAA college football game on Saturday, Oct, 18, 2014, in Tuscaloosa, Ala.(AP Photo/Brynn Anderson)

BYU defensive back Michael Davis in action against UCLA during an NCAA college football game, Saturday, Sept. 19, 2015, in Pasadena, Calif. UCLA won 24-23. (AP Photo/Danny Moloshok)