Cam Newton of the Carolina Panthers in action during the NFL game between the Carolina Panthers and the Kansas City Chiefs at Arrowhead Stadium in Kansas City, Missouri. (Cal Sport Media via AP Images)

Carolina Panthers' Cam Newton (1) throws a pass against the Atlanta Falcons during the first half of an NFL football game in Charlotte, N.C., Sunday, Dec. 9, 2012. (AP Photo/Bob Leverone)

Carolina Panthers quarterback Cam Newton (1) dives into the end zone for a touchdown as Atlanta Falcons' Chris Owens (21) pursues during the second half of an NFL football game in Charlotte, N.C., Sunday, Dec. 9, 2012. (AP Photo/Rainier Ehrhardt)

Carolina Panthers quarterback Cam Newton (1) celebrates a touchdown during an NFL game against the New Orleans Saints September 16, 2012 in Charlotte, N.C. (AP Photo/Margaret Bowles)

Carolina Panthers quarterback Cam Newton (1) smiles and jumps as he carries the ball past New Orleans Saints safety Roman Harper (41) (bottom right) during an NFL football game, Sunday, September 16, 2012, in Charlotte, North Carolina. The Panthers won 35-27. (AP Photo/Paul Abell)

Carolina Panthers quarterback Cam Newton (1) is pressured by the Tampa Bay Buccaneers during an NFL football game at Raymond James Stadium on Sunday, Sept. 9, 2012 in Tampa, Fla. The Bucs won 16-10. (Perry Knotts/NFL)

Carolina Panthers quarterback Cam Newton (R) speaks with Rich Eisen on the NFL Network set at the Super Bowl XLVI media center in Indianapolis, IN on Feb. 2, 2012. (Ben Liebenberg/NFL)

Carolina Panthers' Cam Newton accepts the Rookie of the Year award during the inaugural NFL Honors show Saturday, Feb. 4, 2012, in Indianapolis. (Perry Knotts/NFL)

Carolina Panthers' Cam Newton arrives for the inaugural NFL Honors show Saturday, Feb. 4, 2012, in Indianapolis. (Perry Knotts/NFL)

Carolina Panthers quarterback Cam Newton (1) runs during the 2012 NFL Pro Bowl football game between the AFC All-Stars and the NFC All-Stars on Sunday, January 29, 2012 in Honolulu, Hawaii. The AFC won the game 59-41. (Perry Knotts/NFL)

Carolina Panthers quarterback Cam Newton (1) leaps into the end zone for a touchdown against the Arizona Cardinals during the second quarter of an NFL football game on Sunday, Sept. 11, 2011, in Glendale, Ariz. (AP Photo/Ralph Freso)

Carolina Panthers quarterback Cam Newton (1) celebrates a touchdown against the Chicago Bears in the first half of an NFL football game in Chicago, Sunday, Oct. 2, 2011. (AP Photo/Charles Rex Arbogast)

Carolina Panthers quarterback Cam Newton throws his first career touchdown pass as Arizona Cardinals linebacker Daryl Washington (58) pursues during the first half of an NFL football game on Sunday, Sept. 11, 2011, in Glendale, Ariz. (AP Photo/Paul Connors)

Carolina Panthers quarterback Cam Newton (1) rushes 2 yards for a touchdown against the Chicago Bears in the first half of an NFL football game in Chicago, Sunday, Oct. 2, 2011. (AP Photo/Charles Rex Arbogast)

Carolina Panthers' Cam Newton (1) throws a pass under pressure from Green Bay Packers' Clay Matthews (52) during the first quarter of an NFL football game in Charlotte, N.C., Sunday, Sept. 18, 2011. (AP Photo/Chuck Burton)

Carolina Panthers quarterback Cam Newton (1) is chased by Washington Redskins inside linebacker London Fletcher (59) and strong safety LaRon Landry (30) as he carries the ball for a touchdown during an NFL football game in Charlotte, North Carolina, Sunday, October 23, 2011. The Panthers won 33-20. (AP Photo/Paul Abell)

Carolina Panthers' Cam Newton (1) is upended by Minnesota Vikings' Husain Abdullah (39) during the fourth quarter of the Vikings' 24-21 win in an NFL football game in Charlotte, N.C., Sunday, Oct. 30, 2011. (AP Photo/Chuck Burton)

Carolina Panthers quarterback Cam Newton, center, throws under pressure for Indianapolis Colts defensive end Robert Mathis, right, and defensive end Tyler Brayton during the second quarter of an NFL football game in Indianapolis, Sunday, Nov. 27, 2011. (AP Photo/Darron Cummings)

Carolina Panthers quarterback Cam Newton drops back to pass in the first quarter of an NFL football game against the Houston Texans, Sunday, Dec. 18, 2011, in Houston. (AP Photo/David J. Phillip)

Carolina Panthers' Jonathan Stewart (28) and Cam Newton (1) celebrate a touchdown against the Tampa Bay Buccaneers during an NFL football game in Charlotte, N.C., Saturday, Dec. 24, 2011. The Panthers won 48-16. (AP Photo/Bob Leverone)

Carolina Panthers quarterback Cam Newton gestures as he is introduced before an NFL football game against the Tampa Bay Buccaneers in Charlotte, N.C., Saturday, Dec. 24, 2011. (AP Photo/Mike McCarn)

Carolina Panthers' Cam Newton (1) throws a pass as Tampa Bay Buccaneers' Michael Bennett (71) defends during the first quarter of an NFL football game in Charlotte, N.C., Saturday, Dec. 24, 2011. Newton set a rookie passing record on the play. (AP Photo/Chuck Burton)

Carolina Panthers quarterback Cam Newton (1) passes as New Orleans Saints defensive back Jonathon Amaya, right, rushes during the second quarter of an NFL football game in New Orleans, Sunday, Jan. 1, 2012. The Saints won 45-17. (AP Photo/Bill Feig)

Auburn Heisman Trophy winner Cam Newton acknowledges the crowd after being introduced prior to the annual spring A-Day game at Jordan-Hare Stadium in Auburn, Ala., Saturday, April 14, 2012. Newton feels like his improvement going into Year 2 as an NFL quarterback "is through the roof." (AP Photo/Dave Martin)

Carolina Panthers quarterback Cam Newton during a portrait session at the NFL Network Studio on May 20, 2011 in Culver City, Ca. (Ben Liebenberg/NFL)

Auburn Quarterback Cam Newton on the red carpet during the 2011 NFL Draft at Radio City Music Hall on April 28, 2011 in New York, NY. (Ben Liebenberg/NFL)

Cam Newton poses with Commissioner Roger Goodell after being selected first overall by the Carolina Panthers during the 2011 NFL Draft at Radio City Music Hall on April 28, 2011 in New York, NY. (Ben Liebenberg/NFL)

Auburn quarterback Cam Newton during the 2011 NFL Scouting Combine at Lucas Oil Stadium on Feb. 27 in Indianapolis, Ind. (Ben Liebenberg/NFL)

Auburn quarterback Cam Newton during the 2011 NFL Scouting Combine at Lucas Oil Stadium on Feb. 27 in Indianapolis, Ind. (Ben Liebenberg/NFL)

Auburn quarterback Cam Newton during the 2011 NFL Scouting Combine at Lucas Oil Stadium on Feb. 27 in Indianapolis, Ind. (Ben Liebenberg/NFL)

Auburn quarterback Cameron Newton (2) runs for yardage in the first half of an NCAA college football game against Georgia at Jordan-Hare Stadium in Auburn, Ala., Saturday, Nov. 13, 2010. (AP Photo/Dave Martin)

Auburn's Cameron Newton (2) reacts with fans after a 49-31 win over Georgia in an NCAA college football game at Jordan-Hare Stadium in Auburn, Ala., Saturday, Nov. 13, 2010. (AP Photo/Dave Martin)