Florida State defensive back Ronald Darby jumps before running the 40-yard dash at the NFL football scouting combine in Indianapolis, Monday, Feb. 23, 2015. (AP Photo/Julio Cortez)

Miami of Ohio defensive back Quinten Rollins grimaces while stretching to be measured at the NFL football scouting combine in Indianapolis, Monday, Feb. 23, 2015. (AP Photo/Julio Cortez)

Florida State defensive back P.J. Williams looks on during the 2015 NFL Scouting Combine at Lucas Oil Stadium on Monday, February 23, 2015 in Indianapolis, IN. (AP Photo/Johnny Vy)

LSU defensive back Jalen Collins warms up during the 2015 NFL Scouting Combine at Lucas Oil Stadium on Monday, February 23, 2015 in Indianapolis, IN. (AP Photo/Johnny Vy)

Mississippi State defensive back Justin Cox stretches before drills at the NFL football scouting combine in Indianapolis, Monday, Feb. 23, 2015. (AP Photo/David J. Phillip)

Alabama defensive back Landon Collins, bottom left, huddles with other prospects before drills at the NFL football scouting combine in Indianapolis, Monday, Feb. 23, 2015. (AP Photo/Julio Cortez)

UCLA defensive back A.J. Jefferson runs a drill at the NFL football scouting combine in Indianapolis, Monday, Feb. 23, 2015. (AP Photo/David J. Phillip)

James Madison defensive back Dean Marlowe runs a drill at the NFL football scouting combine in Indianapolis, Monday, Feb. 23, 2015. (AP Photo/Julio Cortez)

A detail view of Florida defensive lineman Dante Fowler's watch is seen during the 2015 NFL Scouting Combine at Lucas Oil Stadium on Sunday, February 22, 2015 in Indianapolis, IN. (AP Photo/Johnny Vy)

Chicago Bears area scout Breck Ackley jots down Auburn defensive lineman Angelo Blackson's measurements at the NFL football scouting combine in Indianapolis, Sunday, Feb. 22, 2015. (AP Photo/Julio Cortez)

Washington defensive lineman Danny Shelton runs the 40-yard dash at the NFL football scouting combine in Indianapolis, Sunday, Feb. 22, 2015. (AP Photo/Julio Cortez)

Northwestern State defensive lineman Deon Simon runs a drill at the NFL football scouting combine in Indianapolis, Sunday, Feb. 22, 2015. (AP Photo/David J. Phillip)

A general view of Lucas Oil Stadium is seen during the 2015 NFL Scouting Combine on Sunday, February 22, 2015 in Indianapolis, IN. (AP Photo/Johnny Vy)

NFL Network's Rich Eisen, left, talks to Zara Schwer after he ran the 40-yard dash for charity to help her at the NFL football scouting combine in Indianapolis, Sunday, Feb. 22, 2015. Schwer is a St. Jude's Hosptial patient. (AP Photo/Julio Cortez)

A detail view of Mississippi State linebacker Benardrick Mckinney's cleats is seen during the 2015 NFL Scouting Combine at Lucas Oil Stadium on Sunday, February 22, 2015 in Indianapolis, IN. (AP Photo/Johnny Vy)

TCU linebacker Paul Dawson stretches during the 2015 NFL Scouting Combine at Lucas Oil Stadium on Sunday, February 22, 2015 in Indianapolis, IN. (AP Photo/Johnny Vy)

Harvard defensive lineman Zack Hodges listens to instructions before drills at the NFL football scouting combine in Indianapolis, Sunday, Feb. 22, 2015. (AP Photo/Julio Cortez)

Florida State quarterback Jameis Winston, left, walks with Oregon quarterback Marcus Mariota after participating at the NFL football scouting combine in Indianapolis, Saturday, Feb. 21, 2015. (AP Photo/Julio Cortez)

Miami wide receiver Phillip Dorsett wears a Miami sticker at the NFL football scouting combine in Indianapolis, Saturday, Feb. 21, 2015. (AP Photo/Julio Cortez)

Ohio State wide receiver Devin Smith catches a pass during a drill at the NFL football scouting combine in Indianapolis, Saturday, Feb. 21, 2015. (AP Photo/David J. Phillip)

College scouts Jon Salge, top left, of the Tennessee Titans and and Rob Kisiel, of the Houston Texans, keep time as Central Connecticut wide receiver Geremy Davis funds a drill at the NFL football scouting combine in Indianapolis, Saturday, Feb. 21, 2015. (AP Photo/Julio Cortez)