Oakland Raiders wide receiver (89) Amari Cooper jumps in the air at the NFLPA Rookie Premiere at the Los Angeles Memorial Coliseum, Saturday, May 30, 2015, in Los Angeles. (Jeff Lewis/AP Images for NFLPA)

St. Louis Rams quarterback (14) Sean Mannion and Chicago Bears running back (36) Jeremy Langford attend the NFLPA Rookie Premiere at the Los Angeles Memorial Coliseum, Saturday, May 30, 2015, in Los Angeles. (Jeff Lewis/AP Images for NFLPA)

St. Louis Rams running back (30) Todd Gurley poses for a portrait at the NFLPA Rookie Premiere at the Los Angeles Memorial Coliseum, Saturday, May 30, 2015, in Los Angeles. (Jeff Lewis/AP Images for NFLPA)

Seattle Seahawks wide receiver (16) Tyler Lockett speaks during an interview at the NFLPA Rookie Premiere at the Los Angeles Memorial Coliseum, Saturday, May 30, 2015, in Los Angeles. (Jeff Lewis/AP Images for NFLPA)

Green Bay Packers quarterback (7) Brett Hundley runs the ball at the NFLPA Rookie Premiere at the Los Angeles Memorial Coliseum, Saturday, May 30, 2015, in Los Angeles. (Jeff Lewis/AP Images for NFLPA)

Houston Texans wide receiver (11) Jaelen Strong attends the NFLPA Rookie Premiere at the Los Angeles Memorial Coliseum, Saturday, May 30, 2015, in Los Angeles. (Jeff Lewis/AP Images for NFLPA)

Tennessee Titans quarterback (8) Marcus Mariota signs football cards for Topps at the NFLPA Rookie Premiere at the Los Angeles Memorial Coliseum, Saturday, May 30, 2015, in Los Angeles. (Jeff Lewis/AP Images for NFLPA)

Tennessee Titans quarterback (8) Marcus Mariota throws a pass at NFLPA Rookie Premiere at the Los Angeles Memorial Coliseum, Saturday, May 30, 2015, in Los Angeles. (Jeff Lewis/AP Images for NFLPA)

Washington Redskins wide receiver (80) Jamison Crowder leaps in the air during a photo shoot at the NFLPA Rookie Premiere at the Los Angeles Memorial Coliseum, Saturday, May 30, 2015, in Los Angeles. (Jeff Lewis/AP Images for NFLPA)

Baltimore Ravens wide receiver (18) Breshad Permian leaps in the air during a photo shoot at the NFLPA Rookie Premiere at the Los Angeles Memorial Coliseum, Saturday, May 30, 2015, in Los Angeles. (Jeff Lewis/AP Images for NFLPA)

Green Bay Packers quarterback (7) Brett Hundley runs the ball at the NFLPA Rookie Premiere at the Los Angeles Memorial Coliseum, Saturday, May 30, 2015, in Los Angeles. (Jeff Lewis/AP Images for NFLPA)

Baltimore Ravens tight end (87) Maxx Williams poses during a photo shoot at the NFLPA Rookie Premiere at the Los Angeles Memorial Coliseum, Saturday, May 30, 2015, in Los Angeles. (Jeff Lewis/AP Images for NFLPA)

Washington Redskins running back (31) Matt Jones poses during a photo shoot during the NFLPA Rookie Premiere at the Los Angeles Memorial Coliseum, Saturday, May 30, 2015, in Los Angeles. (Jeff Lewis/AP Images for NFLPA)

Tennessee Titans quarterback (8) Marcus Mariota poses during a photoshoot at the NFLPA Rookie Premiere at the Los Angeles Memorial Coliseum, Saturday, May 30, 2015, in Los Angeles. (Jeff Lewis/AP Images for NFLPA)

Tampa Bay Buccaneers quarterback (3) Jameis Winston is interviewed at the NFLPA Rookie Premiere at the Los Angeles Memorial Coliseum, Saturday, May 30, 2015, in Los Angeles. (Jeff Lewis/AP Images for NFLPA)

San Francisco 49ers running back (20) Mike Davis jumps in the air during a photoshoot at the NFLPA Rookie Premiere at the Los Angeles Memorial Coliseum, Saturday, May 30, 2015, in Los Angeles. (Jeff Lewis/AP Images for NFLPA)

New York Jets defensive end (62) Leonard Williams attends the NFLPA Rookie Premiere at the Los Angeles Memorial Coliseum, Saturday, May 30, 2015, in Los Angeles. (Jeff Lewis/AP Images for NFLPA)

Washington Redskins running back (31) Matt Jones poses during a photo shoot during the NFLPA Rookie Premiere at the Los Angeles Memorial Coliseum, Saturday, May 30, 2015, in Los Angeles. (Jeff Lewis/AP Images for NFLPA)

Green Bay Packers quarterback (7) Brett Hundley throws a pass at the NFLPA Rookie Premiere at the Los Angeles Memorial Coliseum, Saturday, May 30, 2015, in Los Angeles. (Jeff Lewis/AP Images for NFLPA)

New York Jets defensive end (62) Leonard Williams poses during a photo shoot at the NFLPA Rookie Premiere at the Los Angeles Memorial Coliseum, Saturday, May 30, 2015, in Los Angeles. (Jeff Lewis/AP Images for NFLPA)

Seattle Seahawks wide receiver (16) Tyler Lockett leaps in the air during photo shoot at the NFLPA Rookie Premiere at the Los Angeles Memorial Coliseum, Saturday, May 30, 2015, in Los Angeles. (Jeff Lewis/AP Images for NFLPA)

Arizona Cardinals running back (31) David Johnson leaps in the air during a photo shoot during the NFLPA Rookie Premiere at the Los Angeles Memorial Coliseum, Saturday, May 30, 2015, in Los Angeles. (Jeff Lewis/AP Images for NFLPA)

Indianapolis Colts wide receiver (16) Phillip Dorsett attends the NFLPA Rookie Premiere at the Los Angeles Memorial Coliseum, Saturday, May 30, 2015, in Los Angeles. (Jeff Lewis/AP Images for NFLPA)

Tampa Bay Buccaneers quarterback (3) Jameis Winston attends the NFLPA Rookie Premiere at the Los Angeles Memorial Coliseum, Saturday, May 30, 2015, in Los Angeles. (Jeff Lewis/AP Images for NFLPA)