New England Patriots defensive lineman Vince Wilfolk talks with reporters during a media availability after NFL football minicamp at the team's indoor training facility Tuesday, June 19, 2014 in Foxborough, Mass. (AP Photo Stephan Savoia)

Minnesota Vikings quarterback Matt Cassel, left, watches as rookie quarterback Teddy Bridgewater throws during NFL football minicamp Wednesday, June 18, 2014, in Eden Prairie, Minn. (AP Photo/Jim Mone)

Minnesota Vikings quarterback Christian Ponder throws as rookie quarterback Teddy Bridgewater, left, watches during NFL football minicamp Wednesday, June 18, 2014, in Eden Prairie, Minn. (AP Photo/Jim Mone)

Kansas City Chiefs safety Jerron McMillian (34) catches a pass as cornerback Phillip Gains, back, looks on during NFL football minicamp at the team's practice facility in Kansas City, Mo., Wednesday, June 18, 2014. (AP Photo/Colin E. Braley)

Kansas City Chiefs cornerback David Van Dyke makes a catch during NFL football minicamp at the team's practice facility in Kansas City, Mo., Wednesday, June 18, 2014. (AP Photo/Colin E. Braley)

Chicago Bears wide receiver Brandon Marshall (15) walks on the field during the team's NFL mini-camp football practice in Lake Forest, Ill., Wednesday, June 18, 2014. (AP Photo/Nam Y. Huh)

Chicago Bears quarterback Jay Cutler (6) stretches with teammates during the team's NFL minicamp football practice in Lake Forest, Ill., Wednesday, June 18, 2014. (AP Photo/Nam Y. Huh)

Chicago Bears wide receiver Alshon Jeffery (17) walks on the field with teammates during the team's NFL minicamp football practice in Lake Forest, Ill., Wednesday, June 18, 2014. (AP Photo/Nam Y. Huh)

Pittsburgh Steelers strong safety Troy Polamalu (43) goes through drills during NFL football minicamp, Wednesday, June 18, 2014, in Pittsburgh. (AP Photo/Keith Srakocic)

Pittsburgh Steelers center Maurkice Pouncey, left, goes through drills as offensive line coach Mike Munchak, right, watches during NFL football minicamp, Wednesday, June 18, 2014, in Pittsburgh. (AP Photo/Keith Srakocic)

Pittsburgh Steelers quarterback Ben Roethlisberger passes during NFL football minicamp, Wednesday, June 18, 2014, in Pittsburgh. (AP Photo/Keith Srakocic)

Jacksonville Jaguars wide receiver Brandon Wimberly (4) runs through a drill during NFL football minicamp in Jacksonville, Fla., Tuesday, June 17, 2014. (AP Photo/John Raoux)

New York Giants head coach Tom Coughlin walks the sidelines during NFL football minicamp, Tuesday, June 17, 2014, in East Rutherford, N.J. (AP Photo/Julie Jacobson)

New York Giants wide receiver Odell Beckham Jr., a first round draft pick, prepares to stretch at the end NFL football minicamp, Tuesday, June 17, 2014, in East Rutherford, N.J. (AP Photo/Julie Jacobson)

New York Giants wide receiver Trindon Holliday (15) makes a catch during a drill at NFL football minicamp, Tuesday, June 17, 2014, in East Rutherford, N.J. (AP Photo/Julie Jacobson)

Houston Texans quarterback Ryan Fitzpatrick throws during NFL football minicamp, Tuesday, June 17, 2014, in Houston. (AP Photo/Patric Schneider)

Houston Texans quarterbacks, from left, Ryan Fitzpatrick, Case Keenum, T.J. Yates, and Tom Savage perform a drill during NFL football minicamp, Tuesday, June 17, 2014, in Houston. (AP Photo/Patric Schneider)

Houston Texans defensive end J.J. Watt stretches during NFL football minicamp, Tuesday, June 17, 2014, in Houston. (AP Photo/Patric Schneider)

Houston Texans running back Arian Foster stretches during NFL football minicamp, Tuesday, June 17, 2014, in Houston. (AP Photo/Patric Schneider)

New York Giants wide receiver Rueben Randle (82) high-fives quarterback Eli Manning (10) between drills on the first day of NFL football minicamp, Tuesday, June 17, 2014, in East Rutherford, N.J. (AP Photo/Julie Jacobson)

New York Giants quarterback Eli Manning, right, jogs to another practice field during the first day of NFL football minicamp, Tuesday, June 17, 2014, in East Rutherford, N.J. (AP Photo/Julie Jacobson)

New England Patriots wide receiver Danny Amendola hauls in a pass during a NFL football minicamp in Foxborough, Mass., Tuesday, June 17, 2014. (AP Photo/Charles Krupa)

Jacksonville Jaguars running back Denard Robinson (16) catches a pass during an NFL football minicamp in Jacksonville, Fla., Tuesday, June 17, 2014. (AP Photo/John Raoux)

Jacksonville Jaguars center Mike Brewster (60) blocks defensive tackle Abry Jones, right, during NFL football minicamp in Jacksonville, Fla., Tuesday, June 17, 2014. (AP Photo/John Raoux)

Miami Dolphins quarterback Ryan Tannehill (17) shows his frustration with wide receiver Gerald Ford (16) after a play during NFL football minicamp, Tuesday, June 17, 2014, at the team's training facility in Davie, Fla. (AP Photo/Wilfredo Lee)

Miami Dolphins cornerback Jamar Taylor, foreground, attempts to intercept a pass for wide receiver Armon Binns during NFL football mini camp, Wednesday, June 18, 2014, in Davie, Fla. Taylor appears to be fully recovered from the sports hernia injury that affected him as a rookie and had a nice pass breakup during team drills on Wednesday. (AP Photo/Wilfredo Lee)

Jacksonville Jaguars offensive tackle Luke Joeckel, left, and tackle Cameron Bradfield (78) perform a drill during NFL football minicamp in Jacksonville, Fla., Wednesday, June 18, 2014. (AP Photo/John Raoux)

Jacksonville Jaguars special teams coordinator Mike Mallory, center, directs players through a drill during NFL football minicamp in Jacksonville, Fla., Wednesday, June 18, 2014. (AP Photo/John Raoux)

Jacksonville Jaguars tight end Marcedes Lewis (89) catches a pass as he is defend by D.J. Tileavea, left, during NFL football minicamp in Jacksonville, Fla., Wednesday, June 18, 2014. (AP Photo/John Raoux)

Jacksonville Jaguars center Michael Brewster calls out to teammates on the offensive line during a light scrimmage at NFL football minicamp in Jacksonville, Fla., Wednesday, June 18, 2014. (AP Photo/John Raoux)

Jacksonville Jaguars head coach Gus Bradley directs his players during NFL football minicamp in Jacksonville, Fla., Wednesday, June 18, 2014. (AP Photo/John Raoux)

Jacksonville Jaguars receiver Chad Bumphis (15) looks for a way around defender Mike Harris (20) during a scrimmage at NFL football minicamp in Jacksonville, Fla., Wednesday, June 18, 2014. (AP Photo/John Raoux)

Pittsburgh Steelers linebacker Ryan Shazier wipes sweat away as temperatures hits 90 degrees during NFL football minicamp, Wednesday, June 18, 2014 in Pittsburgh. (AP Photo/Keith Srakocic)

Houston Texans head coach Bill O'Brien speaks with running back Arian Foster (23) during NFL football minicamp, Wednesday, June 18, 2014, in Houston. (AP Photo/Patric Schneider)

Houston Texans quarterbacks Case Keenum (7), and Tom Savage (3), throw during NFL football minicamp, Wednesday, June 18, 2014, in Houston. (AP Photo/Patric Schneider)

Houston Texans defensive end J.J. Watt runs through drills during NFL football minicamp, Wednesday, June 18, 2014, in Houston. (AP Photo/Patric Schneider)

Houston Texans quarterback Ryan Fitzpatrick throws during NFL football minicamp, Wednesday, June 18, 2014, in Houston. (AP Photo/Patric Schneider)

Philadelphia Eagles' head coach Chip Kelly directs his team during NFL football minicamp, Wednesday, June 18, 2014, in Philadelphia. (AP Photo/Matt Rourke)

Philadelphia Eagles quarterback Nick Foles throws a pass during NFL football minicamp, Wednesday, June 18, 2014, in Philadelphia. (AP Photo/Matt Rourke)

Philadelphia Eagles quarterback Mark Sanchez throws a pass during NFL football minicamp, Wednesday, June 18, 2014, in Philadelphia. (AP Photo/Matt Rourke)

Baltimore Ravens running back Ray Rice prepares to catch a pass during NFL football practice, Wednesday, June 18, 2014, at the team's practice facility in Owings Mills, Md. (AP Photo/Patrick Semansky)

Baltimore Ravens head coach John Harbaugh, center, directs players during NFL football practice, Wednesday, June 18, 2014, at the team's practice facility in Owings Mills, Md. (AP Photo/Patrick Semansky)

Baltimore Ravens receivers watch as wide receiver Steve Smith (89) runs a drill during NFL football practice, Wednesday, June 18, 2014, at the team's practice facility in Owings Mills, Md. (AP Photo/Patrick Semansky)

New England Patriots quarterback Tom Brady, center, stretches with teammates quarterback Ryan Mallett, second from left, wide receiver Julian Edelman (11) and quarterback Jimmy Garoppolo (10) during NFL football minicamp in Foxborough, Mass., Wednesday, June 18, 2014. (AP Photo/Michael Dwyer)

New York Giants tackle Justin Pugh douses his head and face with water while taking a break during NFL football minicamp, Wednesday, June 18, 2014, in East Rutherford, N.J. (AP Photo/Julie Jacobson)

New York Giants running back Rashad Jennings (23) takes the ball up field during NFL football minicamp, Wednesday, June 18, 2014, in East Rutherford, N.J. (AP Photo/Julie Jacobson)

New York Giants linebacker Devon Kennard (59) moves back on defense during drills at NFL football minicamp, Wednesday, June 18, 2014, in East Rutherford, N.J. (AP Photo/Julie Jacobson)

New York Giants running back Rashad Jennings (23) takes the ball up field during the second day of NFL football minicamp, Wednesday, June 18, 2014, in East Rutherford, N.J. (AP Photo/Julie Jacobson)

New York Giants quarterback Eli Manning (10) hands off the ball to running back Rashad Jennings (23) during the second day of NFL football minicamp, Wednesday, June 18, 2014, in East Rutherford, N.J. (AP Photo/Julie Jacobson)

Houston Texans head coach Bill O'Brien walks through practice during NFL football minicamp, Wednesday, June 18, 2014, in Houston. (AP Photo/Patric Schneider)

Houston Texans tight end C.J. Fiedorowicz sprays on sunscreen during NFL football minicamp, Wednesday, June 18, 2014, in Houston. (AP Photo/Patric Schneider)

New England Patriots quarterback Tom Brady passes during NFL football minicamp in Foxborough, Mass., Wednesday, June 18, 2014. (AP Photo/Michael Dwyer)

Carolina Panthers quarterback Cam Newton stretches during NFL football practice Wednesday, June 18, 2014 in Charlotte, N.C. (AP Photo/Nell Redmond)

Carolina Panthers tight end Greg Olsen stretches during NFL football practice Wednesday, June 18, 2014, in Charlotte, N.C. (AP Photo/Nell Redmond)

Carolina Panthers wide receiver Toney Clemons juggles balls during NFL football practice Wednesday, June 18, 2014, in Charlotte, N.C. (AP Photo/Nell Redmond)

New England Patriots head coach Bill Belichick raises his arm during NFL football minicamp in Foxborough, Mass., Wednesday, June 18, 2014. (AP Photo/Michael Dwyer)

Carolina Panthers running back DeAngelo Williams reacts during a drill at NFL football practice Wednesday, June 18, 2014 in Charlotte, N.C. (AP Photo/Nell Redmond)

New England Patriots quarterback Tom Brady, center, stretches with teammates quarterback Ryan Mallett, second from left, wide receiver Julian Edelman (11) and quarterback Jimmy Garoppolo (10) during NFL football minicamp in Foxborough, Mass., Wednesday, June 18, 2014. (AP Photo/Michael Dwyer)

New England Patriots quarterbacks Tom Brady, right, and Jimmy Garoppolo participate in passing drills during NFL football minicamp in Foxborough, Mass., Wednesday, June 18, 2014. (AP Photo/Michael Dwyer)

Washington Redskins quarterback Robert Griffin III smiles as he walks towards cameras after NFL football minicamp, Wednesday, June 18, 2014, in Ashburn, Va. (AP Photo/Nick Wass)

Washington Redskins quarterback Robert Griffin III (10) looks on during NFL football minicamp, Wednesday, June 18, 2014, in Ashburn, Va. (AP Photo/Nick Wass)

Washington Redskins wide receiver Santana Moss (89) talks with DeSean Jackson (1) during NFL football minicamp, Wednesday, June 18, 2014, in Ashburn, Va. (AP Photo/Nick Wass)

Washington Redskins head coach Jay Gruden, left, talks with wide receiver DeSean Jackson, right, during NFL football minicamp, Wednesday, June 18, 2014, in Ashburn, Va. (AP Photo/Nick Wass)

Washington Redskins defensive coordinator Jim Haslett, left, talks with defensive end Jason Hatcher (97) during NFL football minicamp, Wednesday, June 18, 2014, in Ashburn, Va. (AP Photo/Nick Wass)

Washington Redskins head coach Jay Gruden, center, walks on the field between quarterbacks Robert Griffin III (10) and Colt McCoy (16) during NFL football minicamp, Wednesday, June 18, 2014, in Ashburn, Va. (AP Photo/Nick Wass)

Atlanta Falcons quarterback Matt Ryan throws the ball during the team's NFL mini-camp football practice, Tuesday, June 17, 2014, in Flowery Branch, Ga. (AP Photo/David Goldman)

Atlanta Falcons' Julio Jones catches a pass during the team's NFL mini-camp football practice, Tuesday, June 17, 2014, in Flowery Branch, Ga. (AP Photo/David Goldman)

Atlanta Falcons' Roddy White throws the ball during the team's NFL mini-camp football practice, Tuesday, June 17, 2014, in Flowery Branch, Ga. (AP Photo/David Goldman)

Seattle Seahawks' Marshawn Lynch smiles at a football minicamp practice that he watched from the sidelines Tuesday, June 17, 2014, in Renton, Wash. (AP Photo/Elaine Thompson)

Seattle Seahawks quarterback Russell Wilson, standing in red, and head coach Pete Carroll, joining the front row second right, are photographed with members of the Darrington (Wash.) High School football team following at a football minicamp practice Tuesday, June 17, 2014, in Renton, Wash. The team were guests of the Seahawks at the practice. (AP Photo/Elaine Thompson)

Seattle Seahawks quarterback Russell Wilson (3) speaks in a huddle at a football minicamp practice Tuesday, June 17, 2014, in Renton, Wash. (AP Photo/Elaine Thompson)

Oakland Raiders quarterback Matt Schaub passes during a drill at the Raiders mini-camp in Alameda, Calif., Tuesday, June 17, 2014. Schaub was acquired by the Raiders from the Houston Texans for a sixth-round pick in the 2014 draft. (AP Photo/Rich Pedroncelli)

Oakland Raiders running back Darren McFadden, carries the ball during a drill at the Raiders minicamp in Alameda, Calif., Tuesday, June 17, 2014.(AP Photo/Rich Pedroncelli)

Oakland Raiders rookie linebacker Khalil Mack catches a pass during a drill at the Raiders minicamp in Alameda, Calif., Tuesday, June 17, 2014. Mack was the Raiders first pick, fifth overall in the 2014 draft.(AP Photo/Rich Pedroncelli)

The ball is just out of the reach of Oakland Raiders wide receiver Greg Jenkins at the Raiders minicamp in Alameda, Calif., Tuesday, June 17, 2014.(AP Photo/Rich Pedroncelli)

Oakland Raiders wide receiver Denarius Moore makes a catch during the Raiders minicamp in Alameda, Calif., Tuesday, June 17, 2014.(AP Photo/Rich Pedroncelli)

Oakland Raiders rookie quarterback Derek Carr, left, hands the ball to rookie running back George Atkinson III during the Raiders minicamp in Alameda, Calif., Tuesday, June 17, 2014.(AP Photo/Rich Pedroncelli)

Oakland Raiders running back Maurice Jones-Drew carries the ball during a drill at the Raiders mini-camp in Alameda, Calif., Tuesday, June 17, 2014.(AP Photo/Rich Pedroncelli)

Former Oakland Raider Howie Long, center, talks with former Raiders head coach Tom Flores, left, and current head coach Dennis Allen at the Raiders minicamp in Alameda, Calif., Tuesday, June 17, 2014.(AP Photo/Rich Pedroncelli)

Green Bay Packers cornerback Micah Hyde pulls in a pass during NFL football minicamp Tuesday, June 17, 2014, in Green Bay, Wis. (AP Photo/Mike Roemer)

Green Bay Packers running back Eddie Lacy looks on during NFL football minicamp Tuesday, June 17, 2014, in Green Bay, Wis. (AP Photo/Mike Roemer)

Dallas Cowboys owner Jerry Jones smiles as he speaks to reporters at NFL football minicamp Tuesday, June 17, 2014, in Irving, Texas. (AP Photo/LM Otero)

Buffalo Bills running back Anthony Dixon (26) carries the ball during NFL football minicamp in Orchard Park, N.Y., Tuesday, June 17, 2014. (AP Photo/Bill Wippert)

Buffalo Bills head coach Doug Marrone works with offensive linemen during NFL football minicamp in Orchard Park, N.Y., Tuesday, June 17, 2014. (AP Photo/Bill Wippert)

Buffalo Bills defensive end Brian Johnson (67) takes part in conditioning drills at NFL football minicamp in Orchard Park, N.Y., Tuesday, June 17, 2014. (AP Photo/Bill Wippert)

Buffalo Bills linebacker Kiko Alonso (50) takes part in drills during NFL football minicamp in Orchard Park, N.Y., Tuesday, June 17, 2014. (AP Photo/Bill Wippert)

Buffalo Bills quarterback EJ Manuel (3) takes part in drills during NFL football minicamp in Orchard Park, N.Y., Tuesday, June 17, 2014. (AP Photo/Bill Wippert)

Buffalo Bills Manny Lawson (91), Marcell Dareus (99) and Jarius Wynn (92) take part in drills during NFL football minicamp in Orchard Park, N.Y., Tuesday, June 17, 2014. (AP Photo/Bill Wippert)

Buffalo Bills defensive tackle Marcell Dareus (99) takes part in drills during NFL football minicamp in Orchard Park, N.Y., Tuesday, June 17, 2014. (AP Photo/Bill Wippert)

New York Giants strong safety Antrel Rolle (26) celebrates after intercepting a pass on the last play of practice during the first day of NFL football minicamp, Tuesday, June 17, 2014, in East Rutherford, N.J. (AP Photo/Julie Jacobson)

Tennessee Titans head coach Ken Whisenhunt watches as quarterback Zach Mettenberger (7) throws during NFL football minicamp on Tuesday, June 17, 2014, in Nashville, Tenn. (AP Photo/Mark Humphrey)

New York Jets quarterback Geno Smith (7) throws a pass during NFL football minicamp Tuesday, June 17, 2014, in Florham Park, N.J. (AP Photo/Mel Evans)

New York Jets running back Alex Green (25) catches the football during NFL football minicamp Tuesday, June 17, 2014, in Florham Park, N.J. (AP Photo/Mel Evans)

Green Bay Packers quarterback Aaron Rodgers throws a pass during NFL football minicamp Tuesday, June 17, 2014, in Green Bay, Wis. (AP Photo/Mike Roemer)

San Francisco 49ers head coach Jim Harbaugh, center, speaks to reporters during NFL football minicamp in Santa Clara, Calif., Tuesday, June 17, 2014. (AP Photo/Jeff Chiu)

San Diego Chargers quarterback Philip Rivers jumps over a canister during NFL football minicamp at the team's facility Tuesday, June 17, 2014, in San Diego. (AP Photo/Gregory Bull)

San Francisco 49ers tackle Jonathan Martin, center, walks toward the locker room during NFL football minicamp in Santa Clara, Calif., Tuesday, June 17, 2014. (AP Photo/Jeff Chiu)

San Diego Chargers quarterback Philip Rivers handles the ball during NFL football minicamp at the team's facility Tuesday, June 17, 2014, in San Diego. (AP Photo/Gregory Bull)

Chicago Bears quarterback Jay Cutler throws a pass during NFL football minicamp Tuesday, June 17, 2014, in Lake Forest, Ill. (AP Photo/Charles Rex Arbogast)

San Diego Chargers running back Ryan Mathews runs while practicing handoffs with teammate quarterback Philip Rivers, left, during NFL football minicamp at the team's facility Tuesday, June 17, 2014, in San Diego. (AP Photo/Gregory Bull)

Green Bay Packers outside linebacker Clay Matthews looks for his helmet during NFL football minicamp Tuesday, June 17, 2014, in Green Bay, Wis. (AP Photo/Mike Roemer)

Green Bay Packers Julius Peppers reaches for the ball during NFL football minicamp Tuesday, June 17, 2014, in Green Bay, Wis. (AP Photo/Mike Roemer)

Dallas Cowboys quarterbacks Tony Romo (9) and Brandon Weeden (3) take a snap with quarterbacks Dustin Vaughan (10) and Caleb Hanie (7) looking on during an NFL football minicamp Tuesday, June 17, 2014, in Irving, Texas. Dallas Cowboys backup quarterback Kyle Orton is a no-show for the first mandatory offseason practice with Weeden, a first-round pick by Cleveland in 2012, the No. 2 quarterback in Orton's absence.(AP Photo/LM Otero)

San Diego Chargers backup quarterback Kellen Clemens, left, runs a drill in front of starting quarterback Philip Rivers during NFL football minicamp at the team's facility Tuesday, June 17, 2014, in San Diego. Clemens comes to the Chargers from the St. Louis Rams, where he started in nine games in 2013. (AP Photo/Gregory Bull)

San Diego Chargers running back Ryan Mathews, right, runs a drill as he is tethered to teammate running back Danny Woodhead, left, during NFL football minicamp at the team's facility Tuesday, June 17, 2014, in San Diego. (AP Photo/Gregory Bull)

San Diego Chargers running back Ryan Mathews runs during NFL football minicamp at the team's facility Tuesday, June 17, 2014, in San Diego. (AP Photo/Gregory Bull)

San Diego Chargers rookie cornerback Jason Verrett, a first round draft pick, runs with the ball during NFL football minicamp at the team's facility Tuesday, June 17, 2014, in San Diego. (AP Photo/Gregory Bull)

New York Giants wide receivers Xavier Harvey (88), Mario Manningham (86), Odell Beckham, Jr. (13) and Trindon Holliday (15) walk along the sidelines between drills on the first day of NFL football minicamp, Tuesday, June 17, 2014, in East Rutherford, N.J. (AP Photo/Julie Jacobson)

New York Giants cornerback Dominique Rodgers-Cromartie (21) takes a break on the first day of NFL football minicamp, Tuesday, June 17, 2014, in East Rutherford, N.J. (AP Photo/Julie Jacobson)

Miami Dolphins quarterback Ryan Tannehill prepares to throw a pass during NFL football minicamp, Tuesday, June 17, 2014, at the team's training facility in Davie, Fla. (AP Photo/Wilfredo Lee)

Miami Dolphins wide receiver Jarvis Landry leaps for a ball while running drills during NFL football minicamp, Tuesday, June 17, 2014, at the team's training facility in Davie, Fla. (AP Photo/Wilfredo Lee)

Miami Dolphins head coach Joe Philbin, rear, watches players run drills during NFL football minicamp, Tuesday, June 17, 2014, at the team's training facility in Davie, Fla. (AP Photo/Wilfredo Lee)

San Francisco 49ers wide receiver Anquan Boldin walks off the practice field during NFL football minicamp in Santa Clara, Calif., Thursday, June 19, 2014. (AP Photo/Jeff Chiu)

San Francisco 49ers quarterback McLeod Bethel-Thompson (5) kicks a soccer ball next to punter Colton Schmidt during NFL football minicamp in Santa Clara, Calif., Thursday, June 19, 2014. (AP Photo/Jeff Chiu)

Oakland Raiders quarterbacks Trent Edwards, left, Matt Schaub, center, and Derek Carr watch from the sidelines during the Raiders mini camp in Alameda, Calif., Thursday, June 19, 2014.(AP Photo/Rich Pedroncelli)

Oakland Raiders quarterback Matt Schaub, right, hands off to running back Jeremy Stewart at the Raiders mini camp in Alameda, Calif., Thursday, June 19, 2014.(AP Photo/Rich Pedroncelli)

Seattle Seahawks' Jeron Johnson is pushed away from the action by Percy Harvin (11) after Johnson got into a tussle with Christine Michael at an NFL football minicamp practice Thursday, June 19, 2014, in Renton, Wash. (AP Photo/Elaine Thompson)

Minnesota Vikings quarterback Teddy Bridgewater looks for an open teammate during NFL football minicamp in Eden Prairie, Minn., Thursday, June 19, 2014. (AP Photo/Ann Heisenfelt)

Minnesota Vikings linebacker Chad Greenway (52) jokes with running back Adrian Peterson (28) during NFL football minicamp in Eden Prairie, Minn., Thursday, June 19, 2014. (AP Photo/Ann Heisenfelt)

Minnesota Vikings quarterback Christian Ponder (7) throws a pass under pressure during NFL football minicamp in Eden Prairie, Minn., Thursday, June 19, 2014. (AP Photo/Ann Heisenfelt)

Dallas Cowboys owner Jerry Jones, left, stands on the sidelines with his son Jerry Jones, Jr. during NFL football minicamp at the team's stadium Thursday, June 19, 2014, in Arlington, Texas. Jones says he expects the defense to be better even without Sean Lee, because there's no way that unit could be any worse than it was in 2013. He also says it's too early to think about Josh Brent's return to football once he is released in an intoxication manslaughter case. (AP Photo/LM Otero)

San Francisco 49ers wide receiver Michael Crabtree catches a pass during NFL football minicamp in Santa Clara, Calif., Thursday, June 19, 2014. (AP Photo/Jeff Chiu)

A member of the Baltimore Ravens staff places players' helmets into a cardboard box after NFL football minicamp, Thursday, June 19, 2014, at the team's practice facility in Owings Mills, Md. (AP Photo/Patrick Semansky)

Baltimore Ravens head coach John Harbaugh, left, shakes hands with owner Steve Bisciotti as president Dick Cass, right, walks off the field after NFL football minicamp, Thursday, June 19, 2014, at the team's practice facility in Owings Mills, Md. (AP Photo/Patrick Semansky)

New York Jets quarterback Michael Vick (1) kneels on the field during NFL football minicamp, Thursday, June 19, 2014, in Florham Park, N.J. (AP Photo/Mel Evans)

New England Patriots tight end Justin Jones, left, works against fullback James Develin (46) during NFL football minicamp at the team's indoor training facility Tuesday, June 19, 2014 in Foxborough, Mass. (AP Photo Stephan Savoia)

Carolina Panthers quarterback Cam Newton drops back to pass during a drill at NFL football minicap in Charlotte, N.C., Thursday, June 19, 2014. (AP Photo/Nell Redmond)

Carolina Panthers fullback Mike Tolbert carries the ball during a drill at NFL football minicamp in Charlotte, N.C., Thursday, June 19, 2014. (AP Photo/Nell Redmond)

Atlanta Falcons wide receivers Roddy White, left, and Julio Jones watch from the sidelines during NFL football minicamp Thursday, June 19, 2014, in Flowery Branch, Ga. (AP Photo/David Goldman)

Carolina Panthers linebacker Thomas Davis, right, talks with head coach Ron Rivera during NFL football minicamp in Charlotte, N.C., Thursday, June 19, 2014. (AP Photo/Nell Redmond)

Carolina Panthers wide receiver Kelvin Benjamin catches the ball at NFL football minicamp in Charlotte, N.C., Thursday, June 19, 2014. (AP Photo/Nell Redmond)

Atlanta Falcons wide receiver Julio Jones, right, catches a pass from quarterback Matt Ryan during NFL football minicamp, Thursday, June 19, 2014, in Flowery Branch, Ga. (AP Photo/David Goldman)

Atlanta Falcons' Harry Douglas, center, runs the ball during a drill at NFL football minicamp, Thursday, June 19, 2014, in Flowery Branch, Ga. (AP Photo/David Goldman)

Atlanta Falcons' Steven Jackson puts his helmet on during NFL football minicamp, Thursday, June 19, 2014, in Flowery Branch, Ga. (AP Photo/David Goldman)

The dreadlocks of Atlanta Falcons' Dezmen Southward hang down as he stretches during NFL football minicamp, Thursday, June 19, 2014, in Flowery Branch, Ga. (AP Photo/David Goldman)

New Orleans Saints quarterback Drew Brees (9) hands off to first round draft pick Brandin Cooks (10) during NFL football minicamp at the team's training facility in Metairie, La., Thursday, June 19, 2014. (AP Photo/Gerald Herbert)

Baltimore Ravens tight end Dennis Pitta, left, chats with quarterback Joe Flacco during NFL football minicamp, Thursday, June 19, 2014, at the team's practice facility in Owings Mills, Md. (AP Photo/Patrick Semansky)

Baltimore Ravens running back Ray Rice walks on the field during NFL football minicamp, Thursday, June 19, 2014, at the team's practice facility in Owings Mills, Md. (AP Photo/Patrick Semansky)

Baltimore Ravens linebacker C.J. Mosley prepares to run a drill during NFL football minicamp, Thursday, June 19, 2014, at the team's practice facility in Owings Mills, Md. (AP Photo/Patrick Semansky)

Baltimore Ravens linebacker Terrell Suggs, right, walks on the field with teammates during NFL football minicamp, Thursday, June 19, 2014, at the team's practice facility in Owings Mills, Md. (AP Photo/Patrick Semansky)

Miami Dolphins wide receiver Armon Binns, left, catches a touchdown pass against defensive back Walt Aikens during NFL football minicamp, Thursday, June 19, 2014, at the team's training Facility in Davie, Fla. (AP Photo/Wilfredo Lee)

Miami Dolphins defensive end Olivier Vernon (50) sacks quarterback Ryan Tannehill during NFL football minicamp, Thursday, June 19, 2014, at the team's training Facility in Davie, Fla. (AP Photo/Wilfredo Lee)

Miami Dolphins quarterback Ryan Tannehill (17) passes as he is rushed by defensive end Terrence Fede (78) and defensive tackle Randy Starks (94) during a scrimmage on the final day of NFL football minicamp, Thursday, June 19, 2014, at the team's training Facility in Davie, Fla. (AP Photo/Wilfredo Lee)

Kansas City Chiefs quarterbacks Aaron Murray (7) Tyler Bray (9) and Chase Daniel (10) watch Alex Smith (11) make a throw during NFL football minicamp at the team's practice facility in Kansas City, Mo., Thursday, June 19, 2014. (AP Photo/Colin E. Braley)

Miami Dolphins head coach Joe Philbin watches from the sideline during a scrimmage on the final day of NFL football minicamp, Thursday, June 19, 2014, at the team's training Facility in Davie, Fla. (AP Photo/Wilfredo Lee)

Chicago Bears cornerback Charles Tillman, right, jokes with Jared Allen during NFL football minicamp Thursday, June 19, 2014, in Lake Forest, Ill. (AP Photo/Charles Rex Arbogast)

Chicago Bears' Jared Allen, left, talks to outside linebacker Lance Briggs during NFL football minicamp Thursday, June 19, 2014, in Lake Forest, Ill. (AP Photo/Charles Rex Arbogast)

Chicago Bears quarterback Jordan Palmer (2) passes during NFL football minicamp Thursday, June 19, 2014, in Lake Forest, Ill. (AP Photo/Charles Rex Arbogast)

Chicago Bears quarterback Jay Cutler (6) throws a pass during NFL football minicamp Thursday, June 19, 2014, in Lake Forest, Ill. (AP Photo/Charles Rex Arbogast)

Chicago Bears quarterback Jordan Palmer (2) passes as head coach Marc Trestman watches during NFL football minicamp Thursday, June 19, 2014, in Lake Forest, Ill. (AP Photo/Charles Rex Arbogast)

Chicago Bears quarterback Jay Cutler (6) talks to quarterback prospect David Fales (12) as Jordan Palmer (2) and quarterback coach Matt Cavanaugh, right, watch during NFL football minicamp Thursday, June 19, 2014, in Lake Forest, Ill. (AP Photo/Charles Rex Arbogast)

New England Patriots fullback James Develin (46) catches a pass during NFL football minicamp at the team's indoor training facility Tuesday, June 19, 2014 in Foxborough, Mass. (AP Photo Stephan Savoia)

New England Patriots head coach Bill Belichick walks across the field as his team stretches during NFL football minicamp at the team's indoor training facility Tuesday, June 19, 2014 in Foxborough, Mass. (AP Photo Stephan Savoia)

New England Patriots quarterback Tom Brady (12) huddles with the offensive unit during NFL football minicamp at the team's indoor training facility Tuesday, June 19, 2014 in Foxborough, Mass. (AP Photo Stephan Savoia)

New England Patriots quarterback Tom Brady (12) runs during NFL football minicamp at the team's indoor training facility Tuesday, June 19, 2014 in Foxborough, Mass. (AP Photo Stephan Savoia)

New York Jets owner Woody Johnson, third left, walks past injured players stretching and riding stationary bicycles during NFL football minicamp, Thursday, June 19, 2014, in Florham Park, N.J. (AP Photo/Mel Evans)

New York Jets center Nick Mangold (74), tackle Brent Qvale (79), guard Caleb Schlauderaff (72) and quarterback Tajh Boyd (3) stretch during NFL football minicamp, Thursday, June 19, 2014, in Florham Park, N.J. (AP Photo/Mel Evans)

New York Jets wide receiver Clyde Gates (10) reaches for a throw during NFL football minicamp, Thursday, June 19, 2014, in Florham Park, N.J. (AP Photo/Mel Evans)

San Francisco 49ers quarterback Colin Kaepernick passes during NFL football minicamp in Santa Clara, Calif., Thursday, June 19, 2014. (AP Photo/Jeff Chiu)

San Francisco 49ers head coach Jim Harbaugh, right, talks with general manager Trent Baalke during NFL football minicamp in Santa Clara, Calif., Thursday, June 19, 2014. (AP Photo/Jeff Chiu)

Seattle Seahawks' Mike Taylor, right, knocks the ball loose from Kiero Small during NFL football minicamp Thursday, June 19, 2014, in Renton, Wash. (AP Photo/Elaine Thompson)

Oakland Raiders linebacker Justin Cole stretches at the Raider mini camp in Alameda, Calif., Thursday, June 19, 2014.(AP Photo/Rich Pedroncelli)

Seattle Seahawks' Richard Sherman (25) is chased on a kick-off return drill at an NFL football minicamp practice, Thursday, June 19, 2014, in Renton, Wash. (AP Photo/Elaine Thompson)

Dallas Cowboys kicker Dan Bailey (5) kicks a field goal with teammate Chris Jones (6) during an NFL football minicamp at the team's stadium Thursday, June 19, 2014, in Arlington, Texas. (AP Photo/LM Otero)

Dallas Cowboys head coach Jason Garrett, center, speaks to players during an NFL football minicamp at the team's stadium Thursday, June 19, 2014, in Arlington, Texas. (AP Photo/LM Otero)

Seattle Seahawks' Spencer Ware (44) is chased by Jeremy Lane at an NFL football minicamp practice Thursday, June 19, 2014, in Renton, Wash. (AP Photo/Elaine Thompson)