Carolina Panthers owner David Tepper, left, jokes with quarterback Cam Newton (1) during a Fan Fest practice at the NFL football team's training camp in Charlotte, N.C., Friday, Aug. 2, 2019. (AP Photo/Chuck Burton)

Carolina Panthers quarterback Cam Newton waves to the crowd during a Fan Fest practice at the NFL football team's training camp in Charlotte, N.C., Friday, Aug. 2, 2019. (AP Photo/Chuck Burton)

Carolina Panthers' Luke Kuechly (59) and JJ Jansen (44) watch players warm up during a Fan Fest practice at the NFL football team's training camp in Charlotte, N.C., Friday, Aug. 2, 2019. (AP Photo/Chuck Burton)

Carolina Panthers quarterback Cam Newton looks to pass during a Fan Fest practice at the NFL football team's training camp in Charlotte, N.C., Friday, Aug. 2, 2019. (AP Photo/Chuck Burton)

Carolina Panthers' Cam Newton (1) warms up as fellow quarterbacks, from left to right, Taylor Heinicke, Kyle Allen and Will Grier watch during practice at the NFL football team's training camp in Spartanburg, S.C., Sunday, July 28, 2019. (AP Photo/Chuck Burton)