Philadelphia Eagles running back Jay Ajayi celebrates after winning the NFL Super Bowl 52 football game against the New England Patriots, Sunday, Feb. 4, 2018, in Minneapolis. The Eagles won 41-33. (Frank Franklin II/Associated Press)

Atlanta Falcons defensive end Jack Crawford (95) makes a move to rush during an NFL game against the Green Bay Packers at Mercedes-Benz Stadium, Sunday, Sept. 17, 2017, in Atlanta. (Perry Knotts/NFL)

Atlanta Falcons tight end Alex Gray looks on prior to an NFL game against the Tampa Bay Buccaneers at Mercedes-Benz Stadium on Sunday, Nov. 26, 2017. (Dave Shopland/NFL )

New Orleans Saints defensive end Alex Jenkins (74) leaves the field after an NFL preseason football game against the Cleveland Browns, Thursday, Aug. 10, 2017, in Cleveland. (Ron Schwane/Associated Press)

Pittsburgh Steelers tight end Christian Scotland-Williamson (49), from London, England, during their NFL football rookie mini camp, Saturday, May 12, 2018, in Pittsburgh. (Keith Srakocic/Associated Press)

Carolina Panthers defensive end Efe Obada (71) looks on during the NFL football team's practice in Charlotte, N.C., Tuesday, June 12, 2018. (Chuck Burton/Associated Press)

Baltimore Ravens offensive tackle Jermaine Eluemunor during a practice session at London Irish training ground in London, England, Friday, Sept. 22, 2017. (Matt Dunham/Associated Press)

Denver Broncos tackle Menelik Watson (75) points to the defense after a penalty is called during the second half of an NFL football game against the Buffalo Bills, Sunday, Sept. 24, 2017, in Orchard Park, N.Y. (Adrian Kraus/Associated Press)

Oakland Raiders safety Obi Melifonwu runs a drill during NFL football practice on Tuesday, June 13, 2017, at the team's training facility in Alameda, Calif. (Ben Margot/Associated Press)

Cleveland Browns defensive back Tigie Sankoh catches a pass during NFL football training camp, Friday, July 27, 2018, in Berea, Ohio. (Tony Dejak/Associated Press)