Carolina Panthers' Cam Newton (1) throws a pass against the Kansas City Chiefs during the first half of an NFL preseason football game in Charlotte, N.C., Sunday, Aug. 17, 2014. (AP Photo/Bob Leverone)

Kansas City Chiefs' Alex Smith (11) looks to pass under pressure from Carolina Panthers' Star Lotulelei (98) during the first half of a preseason NFL football game in Charlotte, N.C., Sunday, Aug. 17, 2014. (AP Photo/Chuck Burton)

Kansas City Chiefs' Knile Davis (34) runs past Carolina Panthers' Kony Ealy (94) during the first half of a preseason NFL football game in Charlotte, N.C., Sunday, Aug. 17, 2014. (AP Photo/Chuck Burton)

Carolina Panthers' Jonathan Stewart (28) runs into the end zone for a touchdown as Kansas City Chiefs' Daniel Sorensen (49) looks on during the first half of a preseason NFL football game in Charlotte, N.C., Sunday, Aug. 17, 2014. (AP Photo/Bob Leverone)

Kansas City Chiefs' Dwayne Bowe (82) is tackled by Carolina Panthers' Thomas DeCoud (21) during the first half of an NFL preseason football game in Charlotte, N.C., Sunday, Aug. 17, 2014. (AP Photo/Bob Leverone)

Carolina Panthers' Cam Newton, left, is sacked by Kansas City Chiefs' Josh Mauga, right, during the first half of an NFL preseason football game in Charlotte, N.C., Sunday, Aug. 17, 2014. (AP Photo/Bob Leverone)

Carolina Panthers' Jonathan Stewart, left, is congratulated by teammates after his touchdown run against the Kansas City Chiefs during the first half of a preseason NFL football game in Charlotte, N.C., Sunday, Aug. 17, 2014. (AP Photo/Bob Leverone)

Carolina Panthers' Cam Newton (1) celebrates with Derek Anderson (3) after a Panthers' touchdown against the Kansas City Chiefs during the first half of a preseason NFL football game in Charlotte, N.C., Sunday, Aug. 17, 2014. (AP Photo/Bob Leverone)

Carolina Panthers' Jonathan Stewart (28) runs past Kansas City Chiefs' Dontari Poe (92) during the first half of an NFL preseason football game in Charlotte, N.C., Sunday, Aug. 17, 2014. (AP Photo/Bob Leverone)

Carolina Panthers' Jonathan Stewart (28) runs into the end zone for a touchdown against the Kansas City Chiefs during the first half of a preseason NFL football game in Charlotte, N.C., Sunday, Aug. 17, 2014. (AP Photo/Bob Leverone)

Kansas City Chiefs' Knile Davis (34) runs through the tackle of Carolina Panthers' Charles Godfrey (30) and Bene Benwikere (29) during the first half of a preseason NFL football game in Charlotte, N.C., Sunday, Aug. 17, 2014. (AP Photo/Mike McCarn)

Kansas City Chiefs' Travis Kelce (87) catches a touchdown pass against Carolina Panthers' Robert Lester (38) during the second half of a preseason NFL football game in Charlotte, N.C., Sunday, Aug. 17, 2014. (AP Photo/Mike McCarn)

Kansas City Chiefs' Alex Smith (11) is sacked by Carolina Panthers' Star Lotulelei (98) during the first half of a preseason NFL football game in Charlotte, N.C., Sunday, Aug. 17, 2014. (AP Photo/Bob Leverone)

Carolina Panthers' Kelvin Benjamin, right, catches a pass as Kansas City Chiefs' Sean Smith, left, defends during the first half of a preseason NFL football game in Charlotte, N.C., Sunday, Aug. 17, 2014. (AP Photo/Bob Leverone)

Kansas City Chiefs' Chase Daniel (10) throws a pass over Carolina Panthers' Bene Benwikere (29) during the second half of a preseason NFL football game in Charlotte, N.C., Sunday, Aug. 17, 2014. (AP Photo/Mike McCarn)

Carolina Panthers' Brandon Williams (86) catches a pass against the Kansas City Chiefs during the second half of a preseason NFL football game in Charlotte, N.C., Sunday, Aug. 17, 2014. (AP Photo/Bob Leverone)

Carolina Panthers' Brenton Bersin (2) catches a touchdown pass as Kansas City Chiefs' Phillip Gaines (23) defends during the second half of a preseason NFL football game in Charlotte, N.C., Sunday, Aug. 17, 2014. (AP Photo/Mike McCarn)

Carolina Panthers' Fozzy Whittaker (43) dives into the end zone for a touchdown against the Kansas City Chiefs during the second half of a preseason NFL football game in Charlotte, N.C., Sunday, Aug. 17, 2014. (AP Photo/Bob Leverone)

Carolina Panthers' A.J. Klein (56) is tackled by Kansas City Chiefs' Cyrus Gray (32) as he returns an interception during the second half of a preseason NFL football game in Charlotte, N.C., Sunday, Aug. 17, 2014. (AP Photo/Bob Leverone)

Kansas City Chiefs' Frankie Hammond (85) runs after a catch as Carolina Panthers' Tom Nelson (26) defends during the second half of a preseason NFL football game in Charlotte, N.C., Sunday, Aug. 17, 2014. (AP Photo/Bob Leverone)

Carolina Panthers' Frank Alexander (90) leaps high to defend as Kansas City Chiefs' Aaron Murray (7) looks to pass during the second half of a preseason NFL football game in Charlotte, N.C., Sunday, Aug. 17, 2014. The Panthers won 28-16. (AP Photo/Mike McCarn)

Carolina Panthers' Joe Webb (14) tries to escape Kansas City Chiefs' Vance Walker (99) during the second half of a preseason NFL football game in Charlotte, N.C., Sunday, Aug. 17, 2014. Webb was sacked on the play. The Panthers won 28-16. (AP Photo/Bob Leverone)

Kansas City Chiefs head coach Andy Reid, left, shakes hands with Carolina Panthers head coach Ron Rivera, right, after a preseason NFL football game in Charlotte, N.C., Sunday, Aug. 17, 2014. The Panthers won 28-16. (AP Photo/Bob Leverone)