AP Photos: Panthers at Bills

Carolina Panthers quarterback Cam Newton, center, gives a pep talk to his team before taking the field prior to an NFL football game against the Buffalo Bills, Thursday, Aug. 9, 2018, in Orchard Park, N.Y. (AP Photo/Julio Cortez)

Carolina Panthers linebacker Shaq Green-Thompson, right, intercepts a pass from Buffalo Bills quarterback Nathan Peterman (not shown) during the first half of an NFL football game, Thursday, Aug. 9, 2018, in Orchard Park, N.Y. Panthers linebacker David Mayo, left, helps defend on the play. (AP Photo/Adrian Kraus)

Carolina Panthers running back Christian McCaffrey (22) squeezes between Buffalo Bills defensive back Jordan Poyer (21) and defensive back Micah Hyde (23) to score a touchdown during the first half of an NFL football game, Thursday, Aug. 9, 2018, in Orchard Park, N.Y. (AP Photo/Jeffrey T. Barnes)

Carolina Panthers quarterback Cam Newton throws a pass against the Buffalo Bills during the first half of an NFL football game, Thursday, Aug. 9, 2018, in Orchard Park, N.Y. (AP Photo/Adrian Kraus)

Carolina Panthers running back Christian McCaffrey (22) is congratulated by center Tyler Larsen (69) after scoring a touchdown against the Buffalo Bills during the first half of an NFL football game, Thursday, Aug. 9, 2018, in Orchard Park, N.Y. (AP Photo/Adrian Kraus)

Carolina Panthers quarterback Cam Newton, left, fakes a handoff to running back Christian McCaffrey during the first half of an NFL football game against the Buffalo Bills, Thursday, Aug. 9, 2018, in Orchard Park, N.Y. (AP Photo/Jeffrey T. Barnes)

Carolina Panthers defensive back Colin Jones, left, and defensive back Mike Adams hold hands while praying prior to an NFL football game against the Buffalo Bills, Thursday, Aug. 9, 2018, in Orchard Park, N.Y. (AP Photo/Julio Cortez)

Carolina Panthers defensive back Mike Adams (29) takes the field with teammates prior to an NFL football game against the Buffalo Bills, Thursday, Aug. 9, 2018, in Orchard Park, N.Y. (AP Photo/Jeffrey T. Barnes)

Carolina Panthers linebacker Luke Kuechly in action against the Buffalo Bills during the first half of an NFL football game, Thursday, Aug. 9, 2018, in Orchard Park, N.Y. (AP Photo/Jeffrey T. Barnes)

Carolina Panthers tight end Greg Olsen talks to teammates during the first half of an NFL football game against the Buffalo Bills, Thursday, Aug. 9, 2018, in Orchard Park, N.Y. (AP Photo/Adrian Kraus)

Carolina Panthers quarterback Cam Newton (1) looks to pass against the Buffalo Bills during the first half of an NFL football game, Thursday, Aug. 9, 2018, in Orchard Park, N.Y. (AP Photo/Adrian Kraus)

Carolina Panthers defensive back Rashaan Gaulden in action against the Buffalo Bills during the first half of an NFL football game, Thursday, Aug. 9, 2018, in Orchard Park, N.Y. (AP Photo/Jeffrey T. Barnes)

Buffalo Bills running back Marcus Murphy, right, avoids the tackle from Carolina Panthers defensive back Rashaan Gaulden while scoring on a touchdown run during the first half of an NFL football game, Thursday, Aug. 9, 2018, in Orchard Park, N.Y. (AP Photo/Adrian Kraus)

Carolina Panthers linebacker Shaq Green-Thompson, left, runs with the ball avoiding a tackle from Buffalo Bills wide receiver Rod Streater after Thompson intercepted a pass from Bills quarterback Nathan Peterman, not pictured, during the first half of an NFL football game, Thursday, Aug. 9, 2018, in Orchard Park, N.Y. (AP Photo/Adrian Kraus)

Carolina Panthers wide receiver DJ Moore (12) runs with the ball as Buffalo Bills defensive end Terrence Fede (96) tries to tackle him during the first half of an NFL football game, Thursday, Aug. 9, 2018, in Orchard Park, N.Y. (AP Photo/Adrian Kraus)

Carolina Panthers quarterback Cam Newton works out prior to an NFL football game against the Buffalo Bills, Thursday, Aug. 9, 2018, in Orchard Park, N.Y. (AP Photo/Adrian Kraus)

Carolina Panthers running back Christian McCaffrey (22) stiff arms Buffalo Bills linebacker Matt Milano (58) during the first half of an NFL football game, Thursday, Aug. 9, 2018, in Orchard Park, N.Y. (AP Photo/Jeffrey T. Barnes)

Carolina Panthers quarterback Garrett Gilbert looks to pass against the Buffalo Bills during the first half of an NFL football game, Thursday, Aug. 9, 2018, in Orchard Park, N.Y. (AP Photo/Adrian Kraus)