St. Louis Rams defensive end Chris Long, right, tries to get around offensive tackle Rob Havenstein during training camp at the NFL football team's practice facility Tuesday, Aug. 25, 2015, in St. Louis. (AP Photo/Jeff Roberson)

New York Giants defensive back Mike Harris (37) looks to defend a pass intended for wide receiver Dwayne Harris (17) during training camp practice on August 25, 2015 at the Quest Diagnostics Training Center in East Rutherford, New Jersey (AP Photo/Evan Pinkus)

August 23, 2015 - New Orleans Saints running back Marcus Murphy (48) in running drills during the New Orleans Saints training camp at the New Orleans Saints Training Facility in New Orleans, LA. Stephen Lew/CSM (Cal Sport Media via AP Images)

August 23, 2015 - New Orleans Saints outside linebacker Hau'oli Kikaha (45) working on blocking drills during the New Orleans Saints training camp at the New Orleans Saints Training Facility in New Orleans, LA. Stephen Lew/CSM (Cal Sport Media via AP Images)

August 23, 2015 - New Orleans Saints inside linebacker Stephone Anthony (50) defends the pass during the New Orleans Saints training camp at the New Orleans Saints Training Facility in New Orleans, LA. Stephen Lew/CSM (Cal Sport Media via AP Images)

Arizona Cardinals training camp coach Jen Welter watches practice during an NFL football camp, Monday, Aug. 24, 2015, in Glendale, Ariz. (AP Photo/Matt York)

St. Louis Rams running back Todd Gurley runs with the ball during training camp at the NFL football team's practice facility Tuesday, Aug. 25, 2015, in St. Louis. Gurley has been cleared to practice with the St. Louis Rams, but the 10th overall pick in the draft still won't play in the preseason. (AP Photo/Jeff Roberson)

St. Louis Rams outside linebacker Alec Ogletree, left, nearly intercepts a pass intended for tight end Justice Cunningham during training camp at the NFL football team's practice facility Tuesday, Aug. 25, 2015, in St. Louis. (AP Photo/Jeff Roberson)

New York Jets quarterback Geno Smith (7) runs sprints with teammates during the NFL football team's training camp, Wednesday, Aug. 26, 2015, in Florham Park, N.J. Smith was back at practice or the first time since his jaw was broken during a locker room altercation with IK Enemkpali. (AP Photo/Julie Jacobson)

In this Wednesday, Aug. 26, 2015, photograph, San Francisco 49ers linebacker Ahmad Brooks takes part in drills before an NFL football scrimmage at the Denver Broncos' headquarters Wednesday, Aug. 26, 2015, in Englewood, Colo. (AP Photo/David Zalubowski)

Pittsburgh Steelers quarterback Michael Vick passes during practice for the NFL football team, Wednesday, Aug. 26, 2015 in Pittsburgh. (AP Photo/Keith Srakocic)

Pittsburgh Steelers quarterback Michael Vick, right, talks with quarterbacks coach Randy Fichtner during practice for the NFL football team, Wednesday, Aug. 26, 2015 in Pittsburgh. (AP Photo/Keith Srakocic)

New York Jets quarterback Geno Smith, left, talks to a fan after practice during the NFL football team's training camp, Wednesday, Aug. 26, 2015, in Florham Park, N.J. Smith was back at practice or the first time since his jaw was broken during a locker room altercation with IK Enemkpali. (AP Photo/Julie Jacobson)

Denver Broncos head coach Gary Kubiak, front,steps away from starting quarterback Peyton Manning before an NFL football scrimmage against the San Francisco 49ers at the Broncos' headquarters Wednesday, Aug. 26, 2015, in Englewood, Colo. (AP Photo/David Zalubowski)

Pittsburgh Steelers quarterback Michael Vick (2) warms up with the team during practice for the NFL football team, Wednesday, Aug. 26, 2015 in Pittsburgh. (AP Photo/Keith Srakocic)

Pittsburgh Steelers head coach Mike Tomlin, center, watches as the team goes through agility drills during practice for the NFL football team, Wednesday, Aug. 26, 2015 in Pittsburgh. (AP Photo/Keith Srakocic)

San Francisco 49ers quarterback Colin Kaepernick takes part in drill before facing the Denver Broncos in an NFL football scrimmage at the Broncos' headquarters Wednesday, Aug. 26, 2015, in Englewood, Colo. (AP Photo/David Zalubowski)

New York Giants tackle Justin Pugh (67) during training camp practice on August 25, 2015 at the Quest Diagnostics Training Center in East Rutherford, New Jersey (AP Photo/Evan Pinkus)

New York Giants wide receiver Odell Beckham Jr (13) during training camp practice on August 25, 2015 at the Quest Diagnostics Training Center in East Rutherford, New Jersey (AP Photo/Evan Pinkus)

New England Patriots quarterback Jimmy Garoppolo (10) winds up for a pass during an NFL football practice in Foxborough, Mass., Wednesday, Aug. 26, 2015. (AP Photo/Steven Senne)

New England Patriots wider receiver Reggie Wayne makes a catch during an NFL football practice in Foxborough, Mass., Wednesday, Aug. 26, 2015. (AP Photo/Steven Senne)

New England Patriots quarterback Tom Brady, left, walks toward Patriots wide receiver Reggie Wayne, right, during an NFL football practice in Foxborough, Mass., Wednesday, Aug. 26, 2015. (AP Photo/Steven Senne)

St. Louis Rams defensive tackle Michael Brockers, right, tries to avoid hitting quarterback Nick Foles as Foles throws during training camp at the NFL football team's practice facility Sunday, Aug. 2, 2015, in St. Louis. (AP Photo/Jeff Roberson)

St. Louis Rams running back Todd Gurley catches a pass during training camp at the NFL football team's practice facility Tuesday, Aug. 25, 2015, in St. Louis. Gurley has been cleared to practice with the St. Louis Rams, but the 10th overall pick in the draft still won't play in the preseason. (AP Photo/Jeff Roberson)

St. Louis Rams running back Todd Gurley, right, runs with the ball as safety Maurice Alexander (31) defends during training camp at the NFL football team's practice facility Tuesday, Aug. 25, 2015, in St. Louis. Gurley, who is rehabbing from left knee surgery that ended his college career, has been cleared to practice, but the 10th overall pick in the draft still won't play in the preseason. (AP Photo/Jeff Roberson)

Arizona Cardinals quarterback Carson Palmer (3) runs drills during an NFL football camp, Monday, Aug. 24, 2015, in Glendale, Ariz. (AP Photo/Matt York)

Baltimore Ravens wide receiver Daniel Brown (83) catches a pass from quarterback Matt Schaub during NFL football training camp, Monday, Aug. 24, 2015, in Owings Mills, Md. (AP Photo/Patrick Semansky)

August 23, 2015 - New Orleans Saints quarterback Drew Brees (9) warming up during the New Orleans Saints training camp at the New Orleans Saints Training Facility in New Orleans, LA. Stephen Lew/CSM (Cal Sport Media via AP Images)

Denver Broncos quarterback Peyton Manning, right, confers with backup quarterback Brock Osweiler as they stretch during the team's NFL football training camp session early Thursday, Aug. 20, 2015, in Englewood, Colo. (AP Photo/David Zalubowski)

New England Patriots quarterback Tom Brady (12), talks with New Orleans Saints quarterbacks Drew Brees (9), Ryan Griffin (4) and Luke McCown, right, after a joint practice between the Patriots and New Orleans Saints at the Saint's NFL football training camp in White Sulphur Springs, W.Va., Thursday, Aug. 20, 2015. (AP Photo/Steve Helber)

Baltimore Ravens quarterback Joe Flacco throws a pass during NFL football training camp, Thursday, Aug. 20, 2015, in Philadelphia. (AP Photo/Matt Rourke)

Baltimore Ravens quarterback Joe Flacco (5) hands off the ball to Baltimore Ravens' Lorenzo Taliaferro (34) during NFL football training camp, Thursday, Aug. 20, 2015, in Philadelphia. (AP Photo/Matt Rourke)

Philadelphia Eagles' Dasman McCullum runs a drill during NFL football training camp, Thursday, Aug. 20, 2015, in Philadelphia. (AP Photo/Matt Rourke)

New Orleans Saints wide receiver Brandin Cooks (10) hauls in a pass in front of New England Patriots defensive back Bradley Fletcher (24) during a joint practice between the Patriots and New Orleans Saints at the Saint's NFL football training camp in White Sulphur Springs, W.Va., Thursday, Aug. 20, 2015. (AP Photo/Steve Helber)

New England Patriots quarterback Tom Brady (12) welcomes back New England Patriots tight end Rob Gronkowski (87) with a hug after a touchdown catch during a joint practice between the Patriots and New Orleans Saints at the Saint's NFL football training camp in White Sulphur Springs, W.Va., Thursday, Aug. 20, 2015. (AP Photo/Steve Helber)

New England Patriots strong safety Malcolm Butler (21) tangles with New Orleans Saints wide receiver Brandin Cooks (10) during a joint practice between the Patriots and New Orleans Saints at the Saint's NFL football training camp in White Sulphur Springs, W.Va., Thursday, Aug. 20, 2015. (AP Photo/Steve Helber)

Miami Dolphins' Ryan Tannehill (17) tries to throw a pass over Carolina Panthers' Shaq Green-Thompson (54) during a joint practice at the Panthers' NFL football training camp in Spartanburg, S.C., Wednesday, Aug. 19, 2015. (AP Photo/Chuck Burton)

Miami Dolphins' Cameron Wake (91) intercepts a pass by Carolina Panthers' Cam Newton during a joint practice at the Panthers' NFL football training camp in Spartanburg, S.C., Wednesday, Aug. 19, 2015. (AP Photo/Chuck Burton)

Denver Broncos quarterback Peyton Manning throws to backup quarterback Brock Osweiler during drills at NFL football training camp, Wednesday, Aug. 19, 2015, in Englewood, Colo. (AP Photo/David Zalubowski)

New England Patriot quarterback Tom Brady (12) runs a drill with a trainer during a joint practice between the Patriots and New Orleans Saints at the Saint's NFL football training camp, Wednesday, Aug. 19, 2015, in White Sulphur Springs, W.Va. (AP Photo/Steve Helber)

Baltimore Ravens head coach John Harbaugh, left, and Philadelphia Eagles head coach Chip Kelly chat during a joint practice at the Eagle's NFL football training camp, Wednesday, Aug. 19, 2015, in Philadelphia. (AP Photo/Matt Rourke)

Denver Broncos quarterback Peyton Manning jogs to a field at NFL football training camp, Wednesday, Aug. 19, 2015, in Englewood, Colo. (AP Photo/David Zalubowski)

Baltimore Ravens' Terrell Suggs (55) and Eric Tomlinson (83) run a drill during a joint practice at the Eagle's NFL football training camp, Wednesday, Aug. 19, 2015, in Philadelphia. (AP Photo/Matt Rourke)

Baltimore Ravens' Terrell Suggs catches a pass during a joint practice with the Philadelphia Eagles at the Eagle's NFL football training camp, Wednesday, Aug. 19, 2015, in Philadelphia. (AP Photo/Matt Rourke)

Tennessee Titans quarterback Charlie Whitehurst passes during NFL football training camp Tuesday, Aug. 11, 2015, in Nashville, Tenn. (AP Photo/Mark Humphrey)

Cincinnati Bengals wide receiver Mario Alford, right, breaks away from New York Giants cornerback Troy Hill during a joint NFL football training camp, Wednesday, Aug. 12, 2015, in Cincinnati. (AP Photo/John Minchillo)

Cincinnati Bengals tight end C.J. Uzomah makes a reception against New York Giants linebacker P.J. Dawson, above, during a joint NFL football training camp, Wednesday, Aug. 12, 2015, in Cincinnati. (AP Photo/John Minchillo)

Philadelphia Eagles wide receiver Quron Pratt exercises during practice at NFL football training camp, Wednesday, Aug. 12, 2015, in Philadelphia. (AP Photo/Matt Slocum)

Kansas City Chiefs running back Jamaal Charles (25) is covered by inside linebacker Derrick Johnson (56) as he runs with the ball at NFL football training camp Wednesday, Aug. 12, 2015, in St. Joseph, Mo. (AP Photo/Charlie Riedel)

Denver Broncos tackle Kyle Roberts (66) during the morning session at the team's NFL training camp Wednesday, Aug. 12, 2015, in Englewood, Colo. (AP Photo/David Zalubowski)

Philadelphia Eagles head coach Chip Kelly watches his team warm up before practice at NFL football training camp, Wednesday, Aug. 12, 2015, in Philadelphia. (AP Photo/Matt Slocum)

Kansas City Chiefs at NFL football training camp Wednesday, Aug. 12, 2015, in St. Joseph, Mo. (AP Photo/Charlie Riedel)

Denver Broncos quarterback Peyton Manning (18) at Denver Broncos training camp August 10, 2015 at the UCHealth Training Center in Englewood,CO. (AP Photo/Eric Bakke)

Kansas City Chiefs running back Jamaal Charles (25) practices at NFL football training camp Wednesday, Aug. 12, 2015, in St. Joseph, Mo. (AP Photo/Charlie Riedel)

Baltimore Ravens wide receiver Steve Smith catches a pass during NFL football training camp, Tuesday, Aug. 11, 2015, in Owings Mills, Md. Smith announced Monday that he plans to retire after this season. (AP Photo/Patrick Semansky)

FILE - In this Aug. 2, 2015, file photo, Philadelphia Eagles running back DeMarco Murray (29) heads over to the next drill as Raheem Mostert, left, and Ryan Mathews follow during practice at NFL football training camp in Philadelphia. DeMarco Murray traded in the blue star on his helmet for silver Eagles wings, swinging the power in the NFC East from Dallas to Philadelphia. (AP Photo/Chris Szagola, File)

Kansas City Chiefs wide receiver Donatella Luckett (15) catches the ball above cornerbacks Marcus Cooper (31), Steven Nelson (20) and Sean Smith, back, during NFL football training camp in St. Joseph, Mo., Tuesday, Aug. 11, 2015. (AP Photo/Orlin Wagner)

Dallas Cowboys team runs during an NFL training camp practice Monday, August 10, 2015 at City of Oxnard Fields in Oxnard, California. (AP Photo/James D Smith)

Baltimore Ravens tight end Maxx Williams catches a pass during NFL football training camp, Tuesday, Aug. 11, 2015, in Owings Mills, Md. (AP Photo/Patrick Semansky)

Chicago Bears tight end Martellus Bennett (83) catches the football during practice drills at Chicago Bears Training Camp at Olivet Nazarene University in Bourbonnais, Illinois on Monday, August 10, 2015. (AP Photo/Scott Boehm)

Miami Dolphins linebacker Jeff Luc runs drills during an NFL football training camp practice, Tuesday, Aug. 11, 2015 in Davie, Fla. (AP Photo/Wilfredo Lee)

Kansas City Chiefs wide receiver De'Anthony Thomas (13) gets away from strong safety Ron Parker (38) during NFL football training camp in St. Joseph, Mo., Tuesday, Aug. 11, 2015. (AP Photo/Orlin Wagner)

Miami Dolphins players pray after an NFL football training camp practice, Tuesday, Aug. 11, 2015, in Davie, Fla. (AP Photo/Wilfredo Lee)

Indianapolis Colts wide receiver Phillip Dorsett (15) makes a catch during NFL football training camp Monday, Aug. 10, 2015, in Anderson, Ind. (AP Photo/Darron Cummings)

Indianapolis Colts quarterback Andrew Luck (12) throws during NFL football training camp Monday, Aug. 10, 2015, in Anderson, Ind. (AP Photo/Darron Cummings)

Miami Dolphins middle linebacker Kelvin Sheppard (52) and outside linebacker Jelani Jenkins (53) chat during an NFL football training camp practice, Tuesday, Aug. 11, 2015 in Davie, Fla. (AP Photo/Wilfredo Lee)

Dallas Cowboys linebacker Sean Lee (50) and fullback Tyler Clutts (44) during an NFL training camp practice Monday, August 10, 2015 at City of Oxnard Fields in Oxnard, California. (AP Photo/James D Smith)

Chicago Bears quarterback Jay Cutler (6) passes the football during practice drills at Chicago Bears Training Camp at Olivet Nazarene University in Bourbonnais, Illinois on Monday, August 10, 2015. (AP Photo/Scott Boehm)

Miami Dolphins running back LaMichael James runs the ball during an NFL football training camp practice, Tuesday, Aug. 11, 2015 in Davie, Fla. (AP Photo/Wilfredo Lee)

Miami Dolphins wide receiver Kenny Stills catches the ball as he warms up during an NFL football training camp practice, Monday, Aug. 10, 2015 in Davie, Fla. (AP Photo/Wilfredo Lee)

Dallas Cowboys linebacker Sean Lee (50) chases running back Joseph Randle (21) during an NFL training camp practice Sunday, August 9, 2015 at City of Oxnard Fields in Oxnard, California. (AP Photo/James D Smith)

Cleveland Browns defensive back Joe Rankin, right, tries to catch a ball under pressure from cornerback Kendall James during practice at the NFL football team's training camp Monday, Aug. 10, 2015, in Berea, Ohio. (AP Photo/Tony Dejak)

Dallas Cowboys quarterback Tony Romo (9) smiles during an NFL training camp practice Sunday, August 9, 2015 at City of Oxnard Fields in Oxnard, California. (AP Photo/James D Smith)

The Cincinnati Bengals practice a formation in NFL football training camp, Friday, Aug. 7, 2015, in Cincinnati. (AP Photo/John Minchillo)

August 7, 2015: Indianapolis Colts wide receiver Phillip Dorsett (15) during the Indianapolis Colts Training Camp practice at Anderson University in Anderson, IN. (Icon Sportswire via AP Images)

Cincinnati Bengals quarterback Andy Dalton (14) throws a pass during NFL football training camp, Friday, Aug. 7, 2015, in Cincinnati. (AP Photo/John Minchillo)

07 August 2015: Buffalo Bills cornerback Stephon Gilmore (24) in action against Buffalo Bills wide receiver Robert Woods (10) during the Buffalo Bills Training Camp at St. John Fisher College in Pittsford, New York. (Icon Sportswire via AP Images)

07 August 2015: Buffalo Bills tight end Chris Gragg (89) in action against Buffalo Bills defensive tackle Jeremy Towns (90) during the Buffalo Bills Training Camp at St. John Fisher College in Pittsford, New York. (Icon Sportswire via AP Images)

August 7, 2015: Indianapolis Colts inside linebacker D'Qwell Jackson (52) moves in to tackle Indianapolis Colts running back Frank Gore (23) during the Indianapolis Colts Training Camp practice at Anderson University in Anderson, IN. (Icon Sportswire via AP Images)

07 AUG 2015: New York Giants quarterback Eli Manning (10) pours water on New York Giants center Brett Jones (69) after practice at the Timex Performance Center in East Rutherford,NJ. (Icon Sportswire via AP Images)

New Orleans Saints wide receiver Seantavius Jones (15) loses control of a pass with three defenders around him, during the team's NFL football training camp in White Sulphur Springs, W. Va., Friday, Aug. 7, 2015. (AP Photo/Chris Tilley)

Houston Texans wide receiver Cecil Shorts III, center, shakes past Washington Redskins wide receiver Evan Spencer, left, and Washington Redskins defensive back Justin Rogers during a joint NFL training camp in Richmond, Va., Friday, Aug. 7, 2015. (AP Photo/Jason Hirschfeld)

Denver Broncos quarterback Peyton Manning (18) drills at the team's NFL football training camp Friday, Aug. 7, 2015, in Englewood, Colo. (AP Photo/David Zalubowski)

Houston Texans kicker Randy Bullock, left, talks with Washington Redskins quarterback Robert Griffin III during a joint NFL football training in Richmond, Va., Friday, Aug. 7, 2015. (AP Photo/Jason Hirschfeld)

Baltimore Ravens linebacker Zach Orr, left, and outside linebacker Albert McClellan run a drill during NFL football training camp, Friday, Aug. 7, 2015, in Owings Mills, Md. (AP Photo/Patrick Semansky)

Philadelphia Eagles head coach Chip Kelly moves off the field after practice at NFL football training camp, Friday, Aug. 7, 2015, in Philadelphia. (AP Photo/Matt Rourke)

Tennessee Titans nose tackle Sammie Hill works out while recovering from a knee injury during NFL football training camp Wednesday, Aug. 5, 2015, in Nashville, Tenn. (AP Photo/Mark Humphrey)

06 August 2015: Buffalo Bills Special Teams Coordinator Danny Crossman practice blocking drills with wide receiver Andre Davis (82) practice during the Buffalo Bills Training Camp at St. John Fisher College in Pittsford, New York. (Icon Sportswire via AP Images)

Baltimore Ravens defensive tackle Carl Davis walks past uprights after NFL football training camp, Friday, Aug. 7, 2015, in Owings Mills, Md. (AP Photo/Patrick Semansky)

August 6, 2015: New England Patriots running back James White (28) runs a drill during the New England Patriots training camp held on the the game field at Gillette Stadium in Foxborough Massachusetts. Eric Canha/CSM (Cal Sport Media via AP Images)

Detroit Lions running back Ameer Abdullah runs the ball during NFL football training camp in Allen Park, Mich., Thursday, Aug. 6, 2015. (AP Photo/Paul Sancya)

Carolina Panthers' Cam Newton arrives for practice during the NFL football team's training camp in Spartanburg, S.C., Thursday, Aug. 6, 2015. (AP Photo/Chuck Burton)

Carolina Panthers' Mike Tolbert (35) runs with the ball during the NFL football team's training camp in Spartanburg, S.C., Thursday, Aug. 6, 2015. (AP Photo/Chuck Burton)

Oakland Raiders quarterback Derek Carr during their football training camp Thursday, Aug. 6, 2015, in Napa, Calif. (AP Photo/Eric Risberg)

Jacksonville Jaguars wide receiver Damian Copeland (83) makes a reception during practice at NFL football training camp, Thursday, Aug. 6, 2015, in Jacksonville, Fla. (AP Photo/John Raoux)

Jacksonville Jaguars wide receiver Bryan Walters, right, catches a pass as he is defended by defensive back Tommie Campbell, left, during practice at NFL football training camp, Thursday, Aug. 6, 2015, in Jacksonville, Fla. (AP Photo/John Raoux)

Seattle Seahawks Kristjan Sokoli, second left, and Patrick Lewis push against each other in a drill at an NFL football training camp Thursday, Aug. 6, 2015, in Renton, Wash. (AP Photo/Elaine Thompson)

New York Giants wide receiver Corey Washington, top, makes a catch against cornerback Jayron Hosley (28) during the team's NFL football training camp, Thursday, Aug. 6, 2015, in East Rutherford, N.J. (AP Photo/Julie Jacobson)

New York Giants wide receiver Odell Beckham Jr. (13) makes a catch as cornerback Dominique Rodgers-Cromartie (41) defends during the team's NFL football training camp, Thursday, Aug. 6, 2015, in East Rutherford, N.J. (AP Photo/Julie Jacobson)

Aug. 6, 2015: Philadelphia Eagles wide receiver Jordan Matthews (81) catches the ball during training camp at the NovaCare Complex in Philadelphia, Pennsylvania. Christopher Szagola/CSM (Cal Sport Media via AP Images)

Seattle Seahawks quarterback Russell Wilson throws at an NFL football training camp Thursday, Aug. 6, 2015, in Renton, Wash. (AP Photo/Elaine Thompson)

Carolina Panthers' Charles Tillman (31) talks with TJ Heath (26) during the NFL football team's training camp in Spartanburg, S.C., Thursday, Aug. 6, 2015. (AP Photo/Chuck Burton)

FILE - In this July 30, 2015, file photo, New York Jets tight end Jace Amaro (88) makes a catch at training camp in Florham Park, N.J. Randle started training camp as the front-runner to replace NFL rushing champion DeMarco Murray in Dallas. With injuries affecting other candidates, the third-year back might be the last man standing. (AP Photo/Frank Franklin II, File)

New York Giants head coach Tom Coughlin talks to his team following training camp practice on August 5, 2015 at the Quest Diagnostics Training Center in East Rutherford, New Jersey (AP Photo/Evan Pinkus)

August 5, 2015: Former New England Patriots linebacker Willie McGinest addresses spectators during his Patriots Hall of Fame induction held in front of The Hall at Patriot Place at Gillette Stadium in Foxborough, Massachusetts. Eric Canha/CSM (Cal Sport Media via AP Images)

Denver Broncos running back C.J. Anderson (22) during drills at the team's NFL football training camp Thursday, Aug. 6, 2015, in Englewood, Colo. (AP Photo/David Zalubowski)

August 5, 2015: Indianapolis Colts cheerleaders perform during the Indianapolis Colts Training Camp practice at Anderson University in Anderson, IN. (Icon Sportswire via AP Images)

Tennessee Titans wide receiver Tre McBride cools off during NFL football training camp Wednesday, Aug. 5, 2015, in Nashville, Tenn. (AP Photo/Mark Humphrey)

Denver Broncos defensive end DeMarcus Ware catches a pass during drills at the team's NFL football training camp Thursday, Aug. 6, 2015, in Englewood, Colo. (AP Photo/David Zalubowski)

Tennessee Titans wide receiver Dorial Green-Beckham catches a ball during a drill at NFL football training camp Wednesday, Aug. 5, 2015, in Nashville, Tenn. (AP Photo/Mark Humphrey)

New York Giants wide receiver Rueben Randle (82) during training camp practice on August 5, 2015 at the Quest Diagnostics Training Center in East Rutherford, New Jersey (AP Photo/Evan Pinkus)

Aug. 6, 2015: Philadelphia Eagles runs drills during training camp at the NovaCare Complex in Philadelphia, Pennsylvania. Christopher Szagola/CSM (Cal Sport Media via AP Images)

Carolina Panthers' Brenton Bersin (11) catches a pass during the NFL football team's training camp in Spartanburg, S.C., Thursday, Aug. 6, 2015. (AP Photo/Chuck Burton)

Aug. 6, 2015: Philadelphia Eagles quarterback Tim Tebow (11) great fans as he comes out to the field during training camp at the NovaCare Complex in Philadelphia, Pennsylvania. Christopher Szagola/CSM (Cal Sport Media via AP Images)

Denver Broncos linebacker Shane Ray takes part in drills at the team's NFL football training camp Thursday, Aug. 6, 2015, in Englewood, Colo. (AP Photo/David Zalubowski)

Carolina Panthers' Cam Newton (1) throws a pass under pressure from Panthers' Wes Horton (96) during the NFL football team's training camp in Spartanburg, S.C., Thursday, Aug. 6, 2015. (AP Photo/Chuck Burton)

Baltimore Ravens running back Justin Forsett (29) and fullback Kiero Small (35) run a drill with teammates during NFL football training camp, Thursday, Aug. 6, 2015, in Owings Mills, Md. (AP Photo/Patrick Semansky)

New Orleans Saints quarterback Drew Brees (9) looks to pass the ball during the team's NFL football training camp in White Sulphur Springs, W. Va., Thursday, Aug. 6, 2015. (AP Photo/Chris Tilley)

Former New England Patriots linebacker Willie McGinest acknowledges fans as he is introduced while being inducted into the Patriot's Hall of Fame prior to an NFL football training camp in Foxborough, Mass., Wednesday, Aug. 5, 2015. (AP Photo/Charles Krupa)

New England Patriots tight end Rob Gronkowski hauls in a pass during an NFL football training camp, Wednesday, Aug. 5, 2015, in Foxborough, Mass. (AP Photo/Charles Krupa)

Denver Broncos players huddle with Head Coach Gary Kubiak during the middle of practice at Denver Broncos training camp August 4, 2015 at the UCHealth Training Center in Englewood,CO. (AP Photo/ Eric Bakke)

Indianapolis Colts wide receiver Donte Moncrief runs a drill during NFL football training camp Wednesday, Aug. 5, 2015, in Anderson, Ind. (AP Photo/Darron Cummings)

Arizona Cardinals training camp coach Jen Welter watches work outs during an NFL football training camp, Wednesday, Aug. 5, 2015, in Glendale, Ariz. (AP Photo/Matt York)

Jacksonville Jaguars running back T.J. Yeldon, center, runs for yardage during practice at NFL football training camp, Wednesday, Aug. 5, 2015, in Jacksonville, Fla. (AP Photo/John Raoux)

Cincinnati Bengals quarterback Andy Dalton participates in NFL football training camp, Tuesday, Aug. 4, 2015, in Cincinnati. (AP Photo/John Minchillo)

Arizona Cardinals' Carson Palmer (3) works out during an NFL football training camp, Wednesday, Aug. 5, 2015, in Glendale, Ariz. (AP Photo/Matt York)

New England Patriots corner back Malcolm Butler hits a blocking dummy as he makes a catch during an NFL football training camp, Wednesday, Aug. 5, 2015, in Foxborough, Mass. (AP Photo/Charles Krupa)

Denver Broncos training camp August 4, 2015 at the UCHealth Training Center in Englewood,CO. (AP Photo/ Eric Bakke)

Jacksonville Jaguars running back Denard Robinson (16) runs a drill during practice at NFL football training camp, Wednesday, Aug. 5, 2015, in Jacksonville, Fla. (AP Photo/John Raoux)

New England Patriots quarterback Tom Brady sets to pass during NFL football training camp in Foxborough, Mass., Wednesday, Aug. 5, 2015. (AP Photo/Charles Krupa)

Arizona Cardinals' Larry Fitzgerald (11) works out during an NFL football training camp, Wednesday, Aug. 5, 2015, in Glendale, Ariz. (AP Photo/Matt York)

Detroit Lions wide receiver Calvin Johnson catches a pass during NFL football training camp in Allen Park, Mich., Tuesday, Aug. 4, 2015. (AP Photo/Paul Sancya)

New Orleans Saints center Max Unger (60) hits a mat during a drill at the team's NFL football training camp in White Sulphur Springs, W. Va., Wednesday, Aug. 5, 2015. (AP Photo/Chris Tilley)

Miami Dolphins running backs Lamar Miller (26) and LaMichael James (27) talk as they warm up at the teams NFL football training camp, Wednesday, Aug. 5, 2015 in Davie, Fla. (AP Photo/Wilfredo Lee)

Detroit Lions defensive end Ezekiel Ansah rushes during NFL football training camp in Allen Park, Mich., Tuesday, Aug. 4, 2015. (AP Photo/Paul Sancya)

St. Louis Rams running back Tre Mason runs with the ball during training camp at the NFL football team's practice facility Tuesday, Aug. 4, 2015, in St. Louis. (AP Photo/Jeff Roberson)

Cincinnati Bengals linebacker A.J. Hawk, left, and tight end Taylor Kroft, right, take part in a drill during NFL football training camp, Tuesday, Aug. 4, 2015, in Cincinnati. (AP Photo/John Minchillo)

Cincinnati Bengals tight end Tyler Eifert (85) goes up for a pass next to safety Shiloh Keo, right, during NFL football training camp, Tuesday, Aug. 4, 2015, in Cincinnati. (AP Photo/John Minchillo)

New York Jets wide receiver Eric Decker (87) catches a pass in front of New York Jets defensive back Darrelle Revis (24) during practice at NFL football training camp, Tuesday, Aug. 4, 2015, in Florham Park, N.J. (AP Photo/Frank Franklin II)

St. Louis Rams wide receiver Kenny Britt, right, runs past middle linebacker James Laurinaitis after catching a pass during training camp at the NFL football team's practice facility Tuesday, Aug. 4, 2015, in St. Louis. (AP Photo/Jeff Roberson)

Philadelphia Eagles quarterbacks Sam Bradford (7) and Mark Sanchez (3) during practice at NFL football training camp, Tuesday, Aug. 4, 2015, in Philadelphia. (AP Photo/Matt Rourke)

New York Jets' Muhammad Wilkerson (96) rides a stationary bike during practice at NFL football training camp, Tuesday, Aug. 4, 2015, in Florham Park, N.J. (AP Photo/Frank Franklin II)

Philadelphia Eagles quarterback Tim Tebow (11) during practice at NFL football training camp, Tuesday, Aug. 4, 2015, in Philadelphia. (AP Photo/Matt Rourke)

Denver Broncos quarterback Brock Osweiler (17) at Denver Broncos training camp August 3, 2015 at the UCHealth Training Center in Englewood,CO. (AP Photo/ Eric Bakke)

Cleveland Browns wide receiver Terrelle Pryor catches a pass during practice at NFL football training camp, Tuesday, Aug. 4, 2015, in Berea, Ohio. (AP Photo/David Richard)

Cleveland Browns defensive tackle Dylan Wynn (97) chases quarterback Johnny Manziel (2) during practice at NFL football training camp, Tuesday, Aug. 4, 2015, in Berea, Ohio. (AP Photo/David Richard)

Cleveland Browns' Shane Wynn carries the jerseys and shoulder pads of several players after practice at NFL football training camp, Tuesday, Aug. 4, 2015, in Berea, Ohio. (AP Photo/David Richard)

In this image taken with a slow shutter speed, members of the Philadelphia Eagles run a drill during practice at NFL football training camp, Tuesday, Aug. 4, 2015, in Philadelphia. (AP Photo/Matt Rourke)

Carolina Panthers' Cameron Artis-Payne (34) runs with the ball during the NFL football team's training camp in Spartanburg, S.C., Sunday, Aug. 2, 2015. (AP Photo/Chuck Burton)

Tennessee Titans quarterback Zach Mettenberger, right, takes a snap during an evening practice at NFL football training camp Monday, Aug. 3, 2015, in Nashville, Tenn. (AP Photo/Mark Humphrey)

Detroit Lions wide receiver Vernon Johnson catches a pass during NFL football training camp in Allen Park, Mich., Monday, Aug. 3, 2015. (AP Photo/Paul Sancya)

Tampa Bay Buccaneers wide receiver Mike Evans runs with the football after a reception during a Buccaneers NFL football training camp practice Monday, Aug. 3, 2015, in Tampa, Fla. (AP Photo/Chris O'Meara)

Pittsburgh Steelers head coach Mike Tomlin, center, talks with the running backs as they stretch during practice at NFL football training camp in Latrobe, Pa., Monday, Aug. 3, 2015 . (AP Photo/Keith Srakocic)

Arizona Cardinals' Brittan Golden (10) makes a touchdown catch in front of Cardinals' Jimmy Legree (46) during an NFL football training camp practice, Monday, Aug. 3, 2015, in Glendale, Ariz. (AP Photo/Ross D. Franklin)

Indianapolis Colts tight end Coby Fleener (80), left, makes a catch in front of strong safety Mike Adams (29) during the NFL team's football training camp in Anderson, Ind., Monday, Aug. 3, 2015. (AP Photo/Michael Conroy)

Philadelphia Eagles' DeMarco Murray runs a drill during practice at NFL football training camp, Monday, Aug. 3, 2015, in Philadelphia. (AP Photo/Matt Rourke)

Tennessee Titans quarterback Marcus Mariota (8) passes during NFL football training camp Sunday, Aug. 2, 2015, in Nashville, Tenn. (AP Photo/Mark Humphrey)

August 1, 2015: New England Patriots quarterback Jimmy Garoppolo (10) hands off to New England Patriots running back LeGarrette Blount (29). during the New England Patriots practice session for training camp. (Icon Sportswire via AP Images)

Jacksonville Jaguars wide receiver Marqise Lee makes an effort to stay in bounds after he catches a pass during practice at NFL football training camp, Saturday, Aug. 1, 2015, in Jacksonville, Fla. (AP Photo/John Raoux)

New York Giants quarterback Eli Manning (10) throws a pass during practice at NFL football training camp, Saturday, Aug. 1, 2015, in East Rutherford, N.J. (AP Photo/Frank Franklin II)

Chicago Bears tight end Brian Vogler, left, works with tight end Chris Pantale during an NFL football training camp at Olivet Nazarene University, Friday, July 31, 2015, in Bourbonnais, Ill. (AP Photo/Nam Y. Huh)

Buffalo Bills running back LeSean McCoy (25) makes a diving catch against linebacker Nigel Bradham (53) during their NFL football training camp in Pittsford, N.Y., Friday, July 31, 2015. (AP Photo/Bill Wippert)

New England Patriots quarterback Tom Brady, right, gets set to run a drill with his back-up Jimmy Garoppolo during an NFL football training camp in Foxborough, Mass., Thursday, July 30, 2015. (AP Photo/Charles Krupa)

Green Bay Packers� Aaron Rodgers runs a drill during NFL football training camp Thursday, July 30, 2015, in Green Bay, Wis. (AP Photo/Morry Gash)

Minnesota Vikings running back Adrian Peterson participates in practice at an NFL football training camp on the campus of Minnesota State University Tuesday, July 28, 2015, in Mankato, Minn. (AP Photo/Charles Rex Arbogast)

Pittsburgh Steelers quarterback Ben Roethlisberger (7) practices at the NFL football training camp in Latrobe, Pa. on Sunday, July 26, 2015. (AP Photo/Keith Srakocic)

St. Louis Rams cornerback Janoris Jenkins, left, knocks a pass away from wide receiver Tavon Austin during training camp at the NFL football team's practice facility Sunday, Aug. 2, 2015, in St. Louis. (AP Photo/Jeff Roberson)

31 July 2015: Buffalo Bills running back Fred Jackson (22) during the Buffalo Bills Training Camp at St. John Fisher College in Pittsford, New York. (Icon Sportswire via AP Images)

Tampa Bay Buccaneers quarterback Jameis Winston during a Buccaneers NFL football training camp Sunday, Aug. 2, 2015, in Tampa, Fla. (AP Photo/Chris O'Meara)

Washington Redskins wide receiver DeSean Jackson addresses members of the media during the team's NFL football training camp in Richmond, Va., Monday, Aug. 3, 2015. (AP Photo/Jason Hirschfeld)