View photos from Thursday's joint practice with the Colts at Grand Park Sports Campus in Westfield, Ind.

View photos from Thursday's joint practice with the Colts at Grand Park Sports Campus in Westfield, Ind.

View photos from Thursday's joint practice with the Colts at Grand Park Sports Campus in Westfield, Ind.

View photos from Thursday's joint practice with the Colts at Grand Park Sports Campus in Westfield, Ind.

View photos from Thursday's joint practice with the Colts at Grand Park Sports Campus in Westfield, Ind.

View photos from Thursday's joint practice with the Colts at Grand Park Sports Campus in Westfield, Ind.

View photos from Thursday's joint practice with the Colts at Grand Park Sports Campus in Westfield, Ind.

View photos from Thursday's joint practice with the Colts at Grand Park Sports Campus in Westfield, Ind.

View photos from Thursday's joint practice with the Colts at Grand Park Sports Campus in Westfield, Ind.

View photos from Thursday's joint practice with the Colts at Grand Park Sports Campus in Westfield, Ind.

View photos from Thursday's joint practice with the Colts at Grand Park Sports Campus in Westfield, Ind.

View photos from Thursday's joint practice with the Colts at Grand Park Sports Campus in Westfield, Ind.

View photos from Thursday's joint practice with the Colts at Grand Park Sports Campus in Westfield, Ind.

View photos from Thursday's joint practice with the Colts at Grand Park Sports Campus in Westfield, Ind.

View photos from Thursday's joint practice with the Colts at Grand Park Sports Campus in Westfield, Ind.

View photos from Thursday's joint practice with the Colts at Grand Park Sports Campus in Westfield, Ind.

View photos from Thursday's joint practice with the Colts at Grand Park Sports Campus in Westfield, Ind.

View photos from Thursday's joint practice with the Colts at Grand Park Sports Campus in Westfield, Ind.

View photos from Thursday's joint practice with the Colts at Grand Park Sports Campus in Westfield, Ind.

View photos from Thursday's joint practice with the Colts at Grand Park Sports Campus in Westfield, Ind.

View photos from Thursday's joint practice with the Colts at Grand Park Sports Campus in Westfield, Ind.

View photos from Thursday's joint practice with the Colts at Grand Park Sports Campus in Westfield, Ind.

View photos from Thursday's joint practice with the Colts at Grand Park Sports Campus in Westfield, Ind.

View photos from Thursday's joint practice with the Colts at Grand Park Sports Campus in Westfield, Ind.

View photos from Thursday's joint practice with the Colts at Grand Park Sports Campus in Westfield, Ind.

View photos from Thursday's joint practice with the Colts at Grand Park Sports Campus in Westfield, Ind.

View photos from Thursday's joint practice with the Colts at Grand Park Sports Campus in Westfield, Ind.

View photos from Thursday's joint practice with the Colts at Grand Park Sports Campus in Westfield, Ind.

View photos from Thursday's joint practice with the Colts at Grand Park Sports Campus in Westfield, Ind.

View photos from Thursday's joint practice with the Colts at Grand Park Sports Campus in Westfield, Ind.

View photos from Thursday's joint practice with the Colts at Grand Park Sports Campus in Westfield, Ind.

View photos from Thursday's joint practice with the Colts at Grand Park Sports Campus in Westfield, Ind.

View photos from Thursday's joint practice with the Colts at Grand Park Sports Campus in Westfield, Ind.

View photos from Thursday's joint practice with the Colts at Grand Park Sports Campus in Westfield, Ind.

View photos from Thursday's joint practice with the Colts at Grand Park Sports Campus in Westfield, Ind.

View photos from Thursday's joint practice with the Colts at Grand Park Sports Campus in Westfield, Ind.

View photos from Thursday's joint practice with the Colts at Grand Park Sports Campus in Westfield, Ind.

View photos from Thursday's joint practice with the Colts at Grand Park Sports Campus in Westfield, Ind.

View photos from Thursday's joint practice with the Colts at Grand Park Sports Campus in Westfield, Ind.

View photos from Thursday's joint practice with the Colts at Grand Park Sports Campus in Westfield, Ind.

View photos from Thursday's joint practice with the Colts at Grand Park Sports Campus in Westfield, Ind.

View photos from Thursday's joint practice with the Colts at Grand Park Sports Campus in Westfield, Ind.

View photos from Thursday's joint practice with the Colts at Grand Park Sports Campus in Westfield, Ind.

View photos from Thursday's joint practice with the Colts at Grand Park Sports Campus in Westfield, Ind.

View photos from Thursday's joint practice with the Colts at Grand Park Sports Campus in Westfield, Ind.

View photos from Thursday's joint practice with the Colts at Grand Park Sports Campus in Westfield, Ind.

View photos from Thursday's joint practice with the Colts at Grand Park Sports Campus in Westfield, Ind.

View photos from Thursday's joint practice with the Colts at Grand Park Sports Campus in Westfield, Ind.

View photos from Thursday's joint practice with the Colts at Grand Park Sports Campus in Westfield, Ind.

View photos from Thursday's joint practice with the Colts at Grand Park Sports Campus in Westfield, Ind.

View photos from Thursday's joint practice with the Colts at Grand Park Sports Campus in Westfield, Ind.

View photos from Thursday's joint practice with the Colts at Grand Park Sports Campus in Westfield, Ind.

View photos from Thursday's joint practice with the Colts at Grand Park Sports Campus in Westfield, Ind.

View photos from Thursday's joint practice with the Colts at Grand Park Sports Campus in Westfield, Ind.

View photos from Thursday's joint practice with the Colts at Grand Park Sports Campus in Westfield, Ind.

View photos from Thursday's joint practice with the Colts at Grand Park Sports Campus in Westfield, Ind.

View photos from Thursday's joint practice with the Colts at Grand Park Sports Campus in Westfield, Ind.

View photos from Thursday's joint practice with the Colts at Grand Park Sports Campus in Westfield, Ind.

View photos from Thursday's joint practice with the Colts at Grand Park Sports Campus in Westfield, Ind.

View photos from Thursday's joint practice with the Colts at Grand Park Sports Campus in Westfield, Ind.

View photos from Thursday's joint practice with the Colts at Grand Park Sports Campus in Westfield, Ind.

View photos from Thursday's joint practice with the Colts at Grand Park Sports Campus in Westfield, Ind.

View photos from Thursday's joint practice with the Colts at Grand Park Sports Campus in Westfield, Ind.

View photos from Thursday's joint practice with the Colts at Grand Park Sports Campus in Westfield, Ind.

View photos from Thursday's joint practice with the Colts at Grand Park Sports Campus in Westfield, Ind.

View photos from Thursday's joint practice with the Colts at Grand Park Sports Campus in Westfield, Ind.

View photos from Thursday's joint practice with the Colts at Grand Park Sports Campus in Westfield, Ind.

View photos from Thursday's joint practice with the Colts at Grand Park Sports Campus in Westfield, Ind.

View photos from Thursday's joint practice with the Colts at Grand Park Sports Campus in Westfield, Ind.

View photos from Thursday's joint practice with the Colts at Grand Park Sports Campus in Westfield, Ind.

View photos from Thursday's joint practice with the Colts at Grand Park Sports Campus in Westfield, Ind.

View photos from Thursday's joint practice with the Colts at Grand Park Sports Campus in Westfield, Ind.

View photos from Thursday's joint practice with the Colts at Grand Park Sports Campus in Westfield, Ind.

View photos from Thursday's joint practice with the Colts at Grand Park Sports Campus in Westfield, Ind.

View photos from Thursday's joint practice with the Colts at Grand Park Sports Campus in Westfield, Ind.

Christian McCaffrey

Carolina Panthers tight end Greg Olsen (88) catches a pass for a touchdown as Indianapolis Colts cornerback Vontae Davis (21) and strong safety Mike Adams (29) defend during an NFL football game on Monday, Nov. 2, 2015 in Charlotte, N.C. (Peter Read Miller via AP)

Carolina Panthers' Brad Nortman (8) holds as Graham Gano (9) kicks a field goal against the Indianapolis Colts in the second half of an NFL football game in Charlotte, N.C., Monday, Nov. 2, 2015. The Panthers won in overtime 29-26. (AP Photo/Bob Leverone)

Indianapolis Colts' Andrew Luck (12) scrambles away from Carolina Panthers' Kawann Short (99) in the second half of an NFL football game in Charlotte, N.C., Tuesday, Nov. 3, 2015. (AP Photo/Bob Leverone)

Carolina Panthers' Charles Tillman (31) defends a pass to Indianapolis Colts' Donte Moncrief (10) in the second half of an NFL football game in Charlotte, N.C., Tuesday, Nov. 3, 2015. (AP Photo/Bob Leverone)

Carolina Panthers tight end Greg Olsen (88) celebrates a touchdown with teammates during an NFL football game against the Indianapolis Colts on Monday, Nov. 2, 2015 in Charlotte, N.C. (Peter Read Miller via AP)

Carolina Panthers running back Jonathan Stewart (28) scores a touchdown as Indianapolis Colts free safety Dwight Lowery (33) defends during an NFL football game on Monday, Nov. 2, 2015 in Charlotte, N.C. (Peter Read Miller via AP)

FILE - In this Nov. 2, 2015, file photo, Carolina Panthers' Luke Kuechly (59) defends a pass to Indianapolis Colts' Ahmad Bradshaw (44) during an NFL football game in Charlotte, N.C. Former NFL Defensive Player of the Year Kuechly is expected to be back on the field for the start of training camp following offseason shoulder surgery. (AP Photo/Mike McCarn, File)

Carolina Panthers' Luke Kuechly, left, intercepts a pass intended for Indianapolis Colts' Coby Fleener, back, as Carolina Panthers' Charles Tillman, right, watches in overtime of an NFL football game in Charlotte, N.C., early Tuesday, Nov. 3, 2015. The Panthers won 29-26 in overtime. (AP Photo/Bob Leverone)

Teammates surround Carolina Panthers kicker Graham Gano (9) after his game-winning field goal in overtime of an NFL football game against the Indianapolis Colts in Charlotte, N.C., early Tuesday, Nov. 3, 2015. (AP Photo/Mike McCarn)

Indianapolis Colts' Andrew Luck (12) makes a pass against the Carolina Panthers' defense in the second half of an NFL football game in Charlotte, N.C., Monday, Nov. 2, 2015. The Panthers won in overtime 29-26. (AP Photo/Bob Leverone)

Carolina Panthers quarterback Cam Newton (1) carries the ball during an NFL football game against the Indianapolis Colts on Monday, Nov. 2, 2015 in Charlotte, N.C. (Peter Read Miller via AP)

Carolina Panthers' Josh Norman (24) tackles Indianapolis Colts' Frank Gore (23) in the second half of an NFL football game in Charlotte, N.C., Tuesday, Nov. 3, 2015. (AP Photo/Bob Leverone)

Carolina Panthers quarterback Cam Newton (1) throws a pass during an NFL game against the Indianapolis Colts on November 27, 2011. The Panthers defeated the Colts 27-19. (AP Photo/Kevin Terrell)

Carolina Panthers' Cam Newton (1) scrambles away from the Indianapolis Colts' defense in the second half of an NFL football game in Charlotte, N.C., Monday, Nov. 2, 2015. The Panthers won in overtime 29-26. (AP Photo/Bob Leverone)

FILE - In this Nov. 2, 2015, file photo, Carolina Panthers' Cam Newton (1) leaps over Indianapolis Colts players during an NFL football game in Charlotte, N.C. Newton's spectacular season has earned him The Associated Press NFL Offensive Player of the Year award. (AP Photo/Mike McCarn, File)

Carolina Panthers running back DeAngelo Williams (34) races upfield on a 25-yard scoring run during an NFL game against the Indianapolis Colts on November 27, 2011. The Panthers defeated the Colts 27-19. (AP Photo/Kevin Terrell)

Carolina Panthers wide receiver Steve Smith (89) makes a leaping grap during an NFL game against the Indianapolis Colts on November 27, 2011. The Panthers defeated the Colts 27-19. (AP Photo/Kevin Terrell)

Indianapolis Colts quarterback Andrew Luck (12) fumbles the ball while being hit by Carolina Panthers defensive end Kony Ealy (94) during an NFL football game on Monday, Nov. 2, 2015 in Charlotte, N.C. (Peter Read Miller via AP)

Carolina Panthers quarterback Cam Newton, center, right, celebrates with running back DeAngelo Williams after scoring a touchdown against the Indianapolis Colts during the third quarter of an NFL football game in Indianapolis, Sunday, Nov. 27, 2011. (AP Photo/Darron Cummings)

Indianapolis Colts quarterback Curtis Painter (7) is hit by Carolina Panthers strong safety Charles Godfrey during the first quarter of an NFL football game in Indianapolis, Sunday, Nov. 27, 2011. Painter fumbled on the play but the Colts recovered. (AP Photo/Darron Cummings)

Carolina Panthers tight end Jeremy Shockey leaps over Indianapolis Colts free safety Antoine Bethea during the fourth quarter of an NFL football game in Indianapolis, Sunday, Nov. 27, 2011. (AP Photo/Darron Cummings)

Indianapolis Colts free safety Antoine Bethea, left, and cornerback Kevin Thomas, center, try to tackle Carolina Panthers running back Jonathan Stewart during the third quarter of an NFL football game in Indianapolis, Sunday, Nov. 27, 2011. (AP Photo/Darron Cummings)

Carolina Panthers running back DeAngelo Williams (34) scores a touchdown in front of Indianapolis Colts strong safety David Caldwell, left, and free safety Antoine Bethea during the third quarter of an NFL football game in Indianapolis, Sunday, Nov. 27, 2011. (AP Photo/Darron Cummings)

Carolina Panthers quarterback Vinny Testaverde (16) throws a pass under pressure from Indianapolis Colts' Dwight Freeney (93) in an NFL football game in Charlotte, N.C., Sunday, Oct. 28, 2007. (AP Photo/Chuck Burton)

Indianapolis Colts' Peyton Manning (18) throws a pass during the Colts' 31-7 win over the Carolina Panthers in an NFL football game in Charlotte, N.C., Sunday, Oct. 28, 2007. (AP Photo/Chuck Burton)

Carolina Panthers' David Carr (8) throws a pass to Jeff King (87), left, during the fourth quarter of their 31-7 loss to the Indianapolis Colts in an NFL football game in Charlotte, N.C., Sunday, Oct. 28, 2007. (AP Photo/Mike McCarn)

Carolina Panthers' Steve Smith (89) pulls away from Indianapolis Colts' Tim Jennings (23) in an NFL football game in Charlotte, N.C., Sunday, Oct. 28, 2007. (AP Photo/Rick Havner)

Carolina Panthers' DeShaun Foster (26) runs past Indianapolis Colts players Antoine Bethea (41) and Bob Sanders (21) in an NFL football game in Charlotte, N.C., Sunday, Oct. 28, 2007. (AP Photo/Chuck Burton)

Indianapolis Colts' Reggie Wayne, left, pulls in a pass as Carolina Panthers' Richard Marshall, right, defends in an NFL football game in Charlotte, N.C., Sunday, Oct. 28, 2007. (AP Photo/Chuck Burton)

Carolina Panthers kicker John Kasay points to fans as he leaves the field after kicking a 43-yard field goal in overtime to defeat the Indianapolis Colts 23-20 in Indianapolis, Sunday, Oct. 12, 2003. (AP Photo/Tom Strattman)