Minnesota running back David Cobb (37) runs the ball during NCAA college football practice for the Senior Bowl, Thursday, Jan. 22, 2015, at Ladd-Peebles Stadium in Mobile, Ala. (AP Photo/Brynn Anderson)

Nebraska running back Ameer Abdullah (28) runs the ball during NCAA college football practice for the Senior Bowl, Thursday, Jan. 22, 2015, at Ladd-Peebles Stadium in Mobile, Ala. (AP Photo/Brynn Anderson)

Florida offensive tackle Trenton Brown (79) blocks Utah defensive end Nate Orchard (99) during NCAA college football practice for the Senior Bowl, Thursday, Jan. 22, 2015, at Ladd-Peebles Stadium in Mobile, Ala. (AP Photo/Brynn Anderson)

Duke offensive guard Laken Tomlinson (77) is shown during NCAA college football practice for the Senior Bowl, Thursday, Jan. 22, 2015, at Ladd-Peebles Stadium in Mobile, Ala. (AP Photo/Brynn Anderson)

Oregon State quarterback Sean Mannion sets back to pass the ball during NCAA college football practice for the Senior Bowl, Thursday, Jan. 22, 2015, at Ladd-Peebles Stadium in Mobile, Ala. (AP Photo/Brynn Anderson)

Washington defensive tackle Danny Shelton (95) looks on during the North team practice for the 2015 Senior Bowl at Ladd Peebles Stadium in Mobile, AL on January 22, 2015. (AP Photo/Johnny Vy)

Ohio State safety Doran Grant (12) in position during the North team practice for the 2015 Senior Bowl at Ladd Peebles Stadium in Mobile, AL on January 22, 2015. (AP Photo/Johnny Vy)

Arizona State safety Damarious Randall (23) in position during the North team practice for the 2015 Senior Bowl at Ladd Peebles Stadium in Mobile, AL on January 22, 2015. (AP Photo/Johnny Vy)

Kentucky defensive end Za'Darius Smith (94) in position during the North team in position practice for the 2015 Senior Bowl at Ladd Peebles Stadium in Mobile, AL on January 22, 2015. (AP Photo/Johnny Vy)

Delaware tight end Nick Boyle (86) and Utah defensive end Nate Orchard (99) battle for position down the field during the North team practice for the 2015 Senior Bowl at Ladd Peebles Stadium in Mobile, AL on January 22, 2015. (AP Photo/Johnny Vy)

Iowa defensive tackle Carl Davis (71) runs through drills during the North team practice for the 2015 Senior Bowl at Ladd Peebles Stadium in Mobile, AL on January 22, 2015. (AP Photo/Johnny Vy)

East Carolina wide receiver Justin Hardy (82) runs up the field during the North team practice for the 2015 Senior Bowl at Ladd Peebles Stadium in Mobile, AL on January 22, 2015. (AP Photo/Johnny Vy)

Oregon State quarterback Sean Mannion (4) throws a pass during the North team practice for the 2015 Senior Bowl at Ladd Peebles Stadium in Mobile, AL on January 22, 2015. (AP Photo/Johnny Vy)

Yale fullback Tyler Varga (30) in position during the North team practice for the 2015 Senior Bowl at Ladd Peebles Stadium in Mobile, AL on January 22, 2015. (AP Photo/Johnny Vy)

Duke wide receiver Jamison Crowder (3) runs up the field during the North team practice for the 2015 Senior Bowl at Ladd Peebles Stadium in Mobile, AL on January 22, 2015. (AP Photo/Johnny Vy)

Miami of Ohio cornerback Quinten Rollins (22) looks on during the North team practice for the 2015 Senior Bowl at Ladd Peebles Stadium in Mobile, AL on January 22, 2015. (AP Photo/Johnny Vy)

Auburn tight end C.J. Uzomah (88) and Central Florida safety Clayton Geathers (26) reach for a pass during the South team practice for the 2015 Senior Bowl at Ladd Peebles Stadium in Mobile, AL on January 22, 2015. (AP Photo/Johnny Vy)

Oklahoma defensive end Geneo Grissom (85) in position during the South team practice for the 2015 Senior Bowl at Ladd Peebles Stadium in Mobile, AL on January 22, 2015. (AP Photo/Johnny Vy)

Mississippi State defensive end Preston Smith (91) runs through drills during the South team practice for the 2015 Senior Bowl at Ladd Peebles Stadium in Mobile, AL on January 22, 2015. (AP Photo/Johnny Vy)