Nfl

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Miami Dolphins quarterback Matt Moore (8) takes a snap as he runs through drills during an NFL football training camp, Friday, Aug. 4, 2017, at the Dolphins training facility in Davie, Fla. (AP Photo/Wilfredo Lee)

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Miami Dolphins head coach Adam Gase, center, talks with members of the media after an NFL football training camp, Friday, Aug. 4, 2017, at the Dolphins training facility in Davie, Fla. (AP Photo/Wilfredo Lee)

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Seattle Seahawks defensive tackle Jeremy Liggins (93) cools down with a water bottle during NFL football training camp, Thursday, Aug. 3, 2017, in Renton, Wash. (Ken Lambert/The Seattle Times via AP)

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Seattle Seahawks punter Jon Ryan (9) and kicker Blair Walsh (7) take to the field for NFL football training camp, Thursday, Aug. 3, 2017, in Renton, Wash. (Ken Lambert/The Seattle Times via AP)

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Seattle Seahawks defensive end Michael Bennett, right, takes off his pads after a practice which included fights, during NFL football training camp, Thursday, Aug. 3, 2017, in Renton, Wash. (Ken Lambert/The Seattle Times via AP)

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Washington Redskins' head coach Jay Gruden watches during NFL training camp, Thursday, Aug. 3, 2017 in Richmond, Va. (Mark Gormus/Richmond Times-Dispatch via AP)

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Washington Redskins' Trent Murphy prepares to run a drill as other linebackers look on during NFL training camp, Thursday, Aug. 3, 2017 in Richmond, Va. (Mark Gormus/Richmond Times-Dispatch via AP)

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NFL commissioner Roger Goodall, left, has a laugh with Denver Broncos head coach Vance Joseph during NFL football practice, Thursday, Aug. 3, 2017 in Englewood, Colo. (Andy Cross/The Denver Post via AP)

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New York Giants cornerback Eli Apple (24) jokes around with a referee after teammates engaged in a brawl during NFL football training camp, Thursday, Aug. 3, 2017, in East Rutherford, N.J. (AP Photo/Julio Cortez)

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New York Giants offensive tackle Bobby Hart, center, scuffles with defensive tackle Damon Harrison during a brawl between players after a play at NFL football training camp, Thursday, Aug. 3, 2017, in East Rutherford, N.J. (AP Photo/Julio Cortez)

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New York Giants offensive tackle Adam Bisnowaty, left, and defensive end Romeo Okwara fight after running a play during NFL football training camp, Thursday, Aug. 3, 2017, in East Rutherford, N.J. (AP Photo/Julio Cortez)

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Miami Dolphins quarterback Ryan Tannehill, left, hands off to running back Kenyan Drake an NFL football training camp, Thursday, Aug. 3, 2017, at the Dolphins training facility in Davie, Fla. (AP Photo/Wilfredo Lee)

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Miami Dolphins quarterbacks coach Bo Hardegree, left, talks with quarterback Ryan Tannehill, during an NFL football training camp, Thursday, Aug. 3, 2017, at the Dolphins training facility in Davie, Fla. (AP Photo/Wilfredo Lee)

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Miami Dolphins quarterback Ryan Tannehill stretches out during an NFL football training camp, Thursday, Aug. 3, 2017, at the Dolphins training facility in Davie, Fla. (AP Photo/Wilfredo Lee)

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New England Patriots quarterback Tom Brady (12) passes at NFL football training camp, Tuesday, Aug. 1, 2017, in Foxborough, Mass. (AP Photo/Steven Senne)

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In this Tuesday, Aug. 1, 2017 photo,a Wheaties cereal box featuring NFL player Jim Thorpe sits in a display at the Canton Museum of Art in Canton, Ohio. A one-of-a-kind art exhibition devoted to football is making its last stop in Canton, the birthplace of the NFL. The exhibit opened Tuesday, days ahead of the Canton-based Pro Football Hall of Fame's enshrinement weekend.. (AP Photo/Dake Kang