Carolina Panthers quarterback Kyle Allen (7) passes against the Pittsburgh Steelers during the first half of an NFL preseason football game in Charlotte, N.C., Thursday, Aug. 29, 2019. (AP Photo/Mike McCarn)

Carolina Panthers running back Reggie Bonnafon (39) runs against the Pittsburgh Steelers during the first half of an NFL preseason football game in Charlotte, N.C., Thursday, Aug. 29, 2019. (AP Photo/Mike McCarn)

Pittsburgh Steelers head coach Mike Tomlin looks on during the first half of an NFL preseason football game against the Carolina Panthers in Charlotte, N.C., Thursday, Aug. 29, 2019. (AP Photo/Brian Blanco)

Pittsburgh Steelers quarterback Joshua Dobbs (5) hands off to running back Benny Snell (24) during the first half of an NFL preseason football game against the Carolina Panthers in Charlotte, N.C., Thursday, Aug. 29, 2019. (AP Photo/Brian Blanco)

Pittsburgh Steelers Jayrone Elliott (40) is congratulated by defensive back Kameron Kelly following Elliott's interception and touchdown during the first half of an NFL preseason football game against the Carolina Panthers in Charlotte, N.C., Thursday, Aug. 29, 2019. (AP Photo/Mike McCarn)

Pittsburgh Steelers Jay Elliott runs for a touchdown following an interception during the first half of an NFL preseason football game against the Carolina Panthers in Charlotte, N.C., Thursday, Aug. 29, 2019. (AP Photo/Mike McCarn)

Carolina Panthers running back Jordan Scarlett (20) runs while Pittsburgh Steelers cornerback Cameron Sutton (20) tackles during the first half of an NFL preseason football game in Charlotte, N.C., Thursday, Aug. 29, 2019. (AP Photo/Brian Blanco)

Pittsburgh Steelers linebacker Christian Kuntz (99) moves in to sack Carolina Panthers quarterback Will Grier (3) during the first half of an NFL preseason football game in Charlotte, N.C., Thursday, Aug. 29, 2019. (AP Photo/Mike McCarn)

Carolina Panthers head coach Ron Rivera looks on during the first half of an NFL preseason football game against the Pittsburgh Steelers in Charlotte, N.C., Thursday, Aug. 29, 2019. (AP Photo/Mike McCarn)

Carolina Panthers wide receiver Aldrick Robinson (8) is congratulated by teammates tight end Jason Vander Laan (84), wide receiver Terry Godwin (17) and running back Jordan Scarlett (20) following Robinson's touchdown against the Pittsburgh Steelers during the first half of an NFL preseason football game in Charlotte, N.C., Thursday, Aug. 29, 2019. (AP Photo/Mike McCarn)

Pittsburgh Steelers wide receiver Johnny Holton (80) is congratulated by running back Benny Snell (24) and tight end Zach Gentry (81) during the first half of an NFL preseason football game in Charlotte, N.C., Thursday, Aug. 29, 2019. (AP Photo/Mike McCarn)

Carolina Panthers wide receiver Aldrick Robinson (8) runs for a touchdown while Pittsburgh Steelers cornerback Justin Layne (31) tries to tackle during the first half of an NFL preseason football game in Charlotte, N.C., Thursday, Aug. 29, 2019. (AP Photo/Brian Blanco)

Pittsburgh Steelers defensive tackle Isaiah Buggs (96) tackles Carolina Panthers running back Jordan Scarlett (20) during the first half of an NFL preseason football game in Charlotte, N.C., Thursday, Aug. 29, 2019. (AP Photo/Mike McCarn)

Carolina Panthers quarterback Taylor Heinicke (6) loses his grip on the ball during the second half of an NFL preseason football game against the Pittsburgh Steelers in Charlotte, N.C., Thursday, Aug. 29, 2019. (AP Photo/Mike McCarn)

Carolina Panthers quarterback Taylor Heinicke (6) congratulates running back Jordan Scarlett (20) following Scarlett's touchdown against the Pittsburgh Steelers during the second half of an NFL preseason football game in Charlotte, N.C., Thursday, Aug. 29, 2019. (AP Photo/Mike McCarn)

Carolina Panthers running back Jordan Scarlett (20) scores a touchdown while Pittsburgh Steelers linebacker Robert Spillane (49) and Pittsburgh Steelers linebacker Sutton Smith (42) look for the tackle during the second half of an NFL preseason football game in Charlotte, N.C., Thursday, Aug. 29, 2019. (AP Photo/Mike McCarn)

Carolina Panthers tight end Temarrick Hemingway (46) scores while Pittsburgh Steelers defensive back P.J. Locke (24) misses the tackle during the second half of an NFL preseason football game in Charlotte, N.C., Thursday, Aug. 29, 2019. Carolina won 25-19. (AP Photo/Mike McCarn)

Carolina Panthers tight end Temarrick Hemingway (46) is congratulated by offensive guard Rishard Cook (68) following Hemingway's touchdown against the Pittsburgh Steelers during the second half of an NFL preseason football game in Charlotte, N.C., Thursday, Aug. 29, 2019. Carolina won 25-19. (AP Photo/Mike McCarn)

Carolina Panthers head coach Ron Rivera, left, and Pittsburgh Steelers head coach Mike Tomlin shake hands following the Panthers 25-19 win over the Steelers following an NFL preseason football game in Charlotte, N.C., Thursday, Aug. 29, 2019. (AP Photo/Brian Blanco)

FILE - In this Aug. 29, 2019, file photo, Carolina Panthers quarterback Kyle Allen (7) passes against the Pittsburgh Steelers during the first half of an NFL preseason football game in Charlotte, N.C. With Cam Newton reaggravating his foot, the team is looking at the possibility of starting Kyle Allen on Sunday against Arizona, the first of four road games in the next five. Allen has just one career start. (AP Photo/Mike McCarn, File)

FILE - In this Thursday, Aug. 29, 2019 file photo, Carolina Panthers quarterback Kyle Allen (7) passes against the Pittsburgh Steelers during the first half of an NFL preseason football game in Charlotte, N.C. Panthers quarterback Kyle Allen is plenty confident he’ll do well if asked to start Sunday, Sept. 22, 2019 for the injured Cam Newton against the Cardinals. (AP Photo/Mike McCarn, File)

FIEL- In this Aug. 29, 2019, file photo, Carolina Panthers quarterback Will Grier (3) rolls out to pass during the first half of an NFL preseason football game against the Pittsburgh Steelers in Charlotte, N.C. Panthers interim coach Perry Fewell has announced that Grier will start Sunday's game at Indianapolis.(AP Photo/Brian Blanco, File)