IMAGE DISTRIBUTED FOR NFL PLAYERS,INC - Cincinnati Bengals quarterback A.J. McCarron poses during a photo shoot during the 2014 NFLPA Rookie Premiere at the Los Angeles Memorial Coliseum on Saturday, May 31, 2014 in Los Angeles. (Jeff Lewis/AP Images for NFL PLAYERS, Inc.)

IMAGE DISTRIBUTED FOR NFL PLAYERS, INC - Houston Texans' Jadeveon Clowney poses for a photo shoot at the 2014 NFLPA Rookie Premiere at the Los Angeles Memorial Coliseum on Saturday, May 31, 2014 in Los Angeles. (Jeff Lewis/AP Images for NFL PLAYERS, Inc.)

IMAGE DISTRIBUTED FOR NFL PLAYERS, INC - Cleveland Browns quarterback Johnny Manziel throws passes during a photo shoot at the 2014 NFLPA Rookie Premiere at the Los Angeles Memorial Coliseum on Saturday, May 31, 2014 in Los Angeles. (Jeff Lewis/AP Images for NFL PLAYERS, Inc.)

IMAGE DISTRIBUTED FOR NFL PLAYERS, INC - NFL rookie players walk to the locker room during a photo shoot at the 2014 NFLPA Rookie Premiere at the Los Angeles Memorial Coliseum on Saturday, May 31, 2014 in Los Angeles. (Jeff Lewis/AP Images for NFL PLAYERS, Inc.)

IMAGE DISTRIBUTED FOR NFL PLAYERS, INC - Houston Texans' Jadeveon Clowney poses for a photo shoot at the 2014 NFLPA Rookie Premiere at the Los Angeles Memorial Coliseum on Saturday, May 31, 2014 in Los Angeles. (Jeff Lewis/AP Images for NFL PLAYERS, Inc.)

IMAGE DISTRIBUTED FOR NFL PLAYERS, INC - Cleveland Browns quarterback Johnny Manziel speaks to fellow rookies during a photo shoot at the 2014 NFLPA Rookie Premiere at the Los Angeles Memorial Coliseum on Saturday, May 31, 2014 in Los Angeles. (Jeff Lewis/AP Images for NFL PLAYERS, Inc.)

IMAGE DISTRIBUTED FOR NFL PLAYERS, INC - Kansas City Chiefs quarterback Aaron Murray speaks to fans at the 2014 NFLPA Rookie Premiere at the Los Angeles Memorial Coliseum on Saturday, May 31, 2014 in Los Angeles. (Jeff Lewis/AP Images for NFL PLAYERS, Inc.)

IMAGE DISTRIBUTED FOR NFL PLAYERS, INC - San Francisco 49ers' Carlos Hyde poses for a photo at the 2014 NFLPA Rookie Premiere at the Los Angeles Memorial Coliseum on Saturday, May 31, 2014 in Los Angeles. (Jeff Lewis/AP Images for NFL PLAYERS, Inc.)

May 31, 2014; Los Angeles, CA, USA; Carolina Panthers wide receiver Kelvin Benjamin takes photographs at the 2014 NFLPA Rookie Premiere at Los Angeles Memorial Coliseum. Mandatory Credit: Gary A. Vasquez-USA TODAY Sports

May 31, 2014; Los Angeles, CA, USA; Houston Texans pass rusher and No. 1 overall pick Jadeveon Clowney rests at the 2014 NFLPA Rookie Premiere at Los Angeles Memorial Coliseum. Mandatory Credit: Gary A. Vasquez-USA TODAY Sports

May 31, 2014; Los Angeles, CA, USA; Minnesota Vikings quarterback Teddy Bridgewater at the 2014 NFLPA Rookie Premiere at Los Angeles Memorial Coliseum. Mandatory Credit: Gary A. Vasquez-USA TODAY Sports

May 31, 2014; Los Angeles, CA, USA; Houston Texans linebacker Jadeveon Clowney, St. Louis Rams running back Tre Mason and San Francisco 49ers running back Carlos Hyde at the 2014 NFLPA Rookie Premiere at Los Angeles Memorial Coliseum. Mandatory Credit: Gary A. Vasquez-USA TODAY Sports

May 31, 2014; Los Angeles, CA, USA; New York Giants running back Andre Williams signs autographs at the 2014 NFLPA Rookie Premiere at Los Angeles Memorial Coliseum. Mandatory Credit: Gary A. Vasquez-USA TODAY Sports

May 31, 2014; Los Angeles, CA, USA; Cincinnati Bengals quarterback AJ McCarron at the 2014 NFLPA Rookie Premiere at Los Angeles Memorial Coliseum. Mandatory Credit: Gary A. Vasquez-USA TODAY Sports

May 31, 2014; Los Angeles, CA, USA; Cleveland Browns quarterback Johnny Manziel poses for a photoshoot at the 2014 NFLPA Rookie Premiere at Los Angeles Memorial Coliseum. Mandatory Credit: Gary A. Vasquez-USA TODAY Sports

May 31, 2014; Los Angeles, CA, USA; Cleveland Browns quarterback Johnny Manziel poses for a photoshoot at the 2014 NFLPA Rookie Premiere at Los Angeles Memorial Coliseum. Mandatory Credit: Gary A. Vasquez-USA TODAY Sports

May 31, 2014; Los Angeles, CA, USA; Cleveland Browns quarterback Johnny Manziel and Tennessee Titans linebacker Avery Williamson at the 2014 NFLPA Rookie Premiere at Los Angeles Memorial Coliseum. Mandatory Credit: Gary A. Vasquez-USA TODAY Sports

May 31, 2014; Los Angeles, CA, USA; Jacksonville Jaguars quarterback Blake Bortles rests at the 2014 NFLPA Rookie Premiere at the Los Angeles Memorial Coliseum. Mandatory Credit: Gary A. Vasquez-USA TODAY Sports

May 31, 2014; Los Angeles, CA, USA; Jacksonville Jaguars quarterback Blake Bortles at the 2014 NFLPA Rookie Premiere at Los Angeles Memorial Coliseum. Mandatory Credit: Gary A. Vasquez-USA TODAY Sports

May 31, 2014; Los Angeles, CA, USA; Minnesota Vikings quarterback Teddy Bridgewater at the 2014 NFLPA Rookie Premiere at Los Angeles Memorial Coliseum. Mandatory Credit: Gary A. Vasquez-USA TODAY Sports

May 31, 2014; Los Angeles, CA, USA; St. Louis Rams running back Tre Mason films a segment at the 2014 NFLPA Rookie Premiere at Los Angeles Memorial Coliseum. Mandatory Credit: Gary A. Vasquez-USA TODAY Sports

May 31, 2014; Los Angeles, CA, USA; Jacksonville Jaguars quarterback Blake Bortles is interviewed at the 2014 NFLPA Rookie Premiere at Los Angeles Memorial Coliseum. Mandatory Credit: Gary A. Vasquez-USA TODAY Sports

May 31, 2014; Los Angeles, CA, USA; Tennessee Titans running back Bishop Sankey at the 2014 NFLPA Rookie Premiere at Los Angeles Memorial Coliseum. Mandatory Credit: Gary A. Vasquez-USA TODAY Sports

May 31, 2014; Los Angeles, CA, USA; Tampa Bay Buccaneers wide receiver Mike Evans signs autographs at the 2014 NFLPA Rookie Premiere at Los Angeles Memorial Coliseum. Mandatory Credit: Gary A. Vasquez-USA TODAY Sports

May 31, 2014; Los Angeles, CA, USA; Carolina Panthers wide receiver Kelvin Benjamin is interviewed at the 2014 NFLPA Rookie Premiere at Los Angeles Memorial Coliseum. Mandatory Credit: Gary A. Vasquez-USA TODAY Sports

May 31, 2014; Los Angeles, CA, USA; Wide receivers Odell Beckham and Jordan Matthews, of the New York Giants and Philadelphia Eagles, respectively, at the 2014 NFLPA Rookie Premiere at Los Angeles Memorial Coliseum. Mandatory Credit: Gary A. Vasquez-USA TODAY Sports

May 31, 2014; Los Angeles, CA, USA; Houston Texans linebacker Jadeveon Clowney with San Francisco 49ers running back Carlos Hyde at the 2014 NFLPA Rookie Premiere at Los Angeles Memorial Coliseum. Mandatory Credit: Gary A. Vasquez-USA TODAY Sports

May 31, 2014; Los Angeles, CA, USA; Tennessee Titans running back Bishop Sankey and Tampa Bay Buccaneers tight end Austin Seferian-Jenkins pose at the 2014 NFLPA Rookie Premiere at Los Angeles Memorial Coliseum. Mandatory Credit: Gary A. Vasquez-USA TODAY Sports

May 31, 2014; Los Angeles, CA, USA; Detroit Lions tight end Eric Ebron interviews Houston Texans linebacker Jadeveon Clowney at the 2014 NFLPA Rookie Premiere at Los Angeles Memorial Coliseum. Mandatory Credit: Gary A. Vasquez-USA TODAY Sports

May 31, 2014; Los Angeles, CA, USA; Minnesota Vikings quarterback Teddy Bridgewater poses for a photo shoot at the 2014 NFLPA Rookie Premiere at Los Angeles Memorial Coliseum. Mandatory Credit: Gary A. Vasquez-USA TODAY Sports

May 31, 2014; Los Angeles, CA, USA; A photo of the attendees at the the 2014 NFLPA Rookie Premiere at the Los Angeles Memorial Coliseum. (Amar Shah/NFL)