Carolina Panthers' Armanti Edwards (14) breaks the tackle of Miami Dolphins' Quinten Lawrence (36) during the third quarter of a preseason NFL football game in Charlotte, N.C., Friday, Aug. 17, 2012. (AP Photo/Bob Leverone)

Carolina Panthers' Jordan Senn (57) grabs the jersey of Miami Dolphins' Matt Moore (8) during the third quarter of a preseason NFL football game in Charlotte, N.C., Friday, Aug. 17, 2012. (AP Photo/Bob Leverone)

Carolina Panthers head coach Ron Rivera argues a call during the third quarter of a preseason NFL football game against the Miami Dolphins in Charlotte, N.C., Friday, Aug. 17, 2012. (AP Photo/Bob Leverone)

Miami Dolphins' Marcus Thigpen (34) is hit by Carolina Panthers' Haruki Nakamura (43) as Panthers' Sherrod Martin (23) comes in during the first quarter of a preseason NFL football game in Charlotte, N.C., Friday, Aug. 17, 2012. (AP Photo/Bob Leverone)

Carolina Panthers' DeAngelo Williams (34) runs past Miami Dolphins' Gary Guyton (59) during the first quarter of a preseason NFL football game in Charlotte, N.C., Friday, Aug. 17, 2012. (AP Photo/Nell Redmond)

Miami Dolphins' Ryan Tannehill (17) prepares to throw a pass against the Carolina Panthers during the first quarter of a preseason NFL football game in Charlotte, N.C., Friday, Aug. 17, 2012. (AP Photo/Chuck Burton)

Carolina Panthers' Jimmy Clausen looks up after being sacked during the fourth quarter of a preseason NFL football game against the Miami Dolphins in Charlotte, N.C., Friday, Aug. 17, 2012. The Dolphins were called for roughing the passer on the pay. The Panthers won 23-17. (AP Photo/Bob Leverone)

Miami Dolphins' Pat Devlin (7) throws a pass against the Carolina Panthers during the fourth quarter of a preseason NFL football game in Charlotte, N.C., Friday, Aug. 17, 2012. The Panthers won 23-17. (AP Photo/Bob Leverone)

Miami Dolphins quarterback Ryan Tannehill (17) throws a pass under pressure from Carolina Panthers' Charles Johnson (95) during the first quarter of a preseason NFL football game in Charlotte, N.C., Friday, Aug. 17, 2012. (AP Photo/Nell Redmond)

FILE - In this Aug. 17, 2012, file photo, Miami Dolphins cornerback Vontae Davis (21) tangles with Carolina Panthers wide receiver Steve Smith (89) during a preseason NFL football game in Charlotte, N.C. The Dolphins confirmed on Sunday, Aug. 26, that Davis has been traded to the Indianapolis Colts for two undisclosed draft picks. (AP Photo/Mike McCarn, File)

FILE - In this Aug. 17, 2012, file photo, Miami Dolphins quarterback Ryan Tannehill (17) prepares to throw a pass against the Carolina Panthers during the first quarter of a preseason NFL football game in Charlotte, N.C. For the first time since the 1960s, the Dolphins (No. 27 in the AP Pro32) have endured three consecutive losing seasons, and the team is hoping that the consistently strong defense can lead an inexperienced offense to a different result this year. The Dolphins are scheduled to begin their regular season on Sept. 9 at the Houston Texans. (AP Photo/Chuck Burton, File)

ADVANCE FOR WEEKEND EDITIONS, SEPT. 8-9 - FILE - In this Aug. 17, 2012, file photo, Carolina Panthers quarterback Cam Newton celebrates a teammate's touchdown against the Miami Dolphins during the first quarter of a preseason NFL football game in Charlotte, N.C. Newton is coming off a spectacular season in which he set a record for yards passing in a season by a rookie and rushing touchdowns by a quarterback. Although some around the league see some major challenges in store for Newton, he says he won't change his approach to the game in year two. The Panthers are scheduled to open their regular season on Sunday, Sept. 9, against the Tampa Bay Buccaneers in Tampa, Fla. (AP Photo/Nell Redmond, File)

ADVANCE FOR WEEKEND EDITIONS, SEPT. 8-9 - FILE - In this Aug. 17, 2012, file photo, Carolina Panthers quarterback Cam Newton rolls out against the Miami Dolphins during the first quarter of a preseason NFL football game in Charlotte, N.C. Newton is coming off a spectacular season in which he set a record for yards passing in a season by a rookie and rushing touchdowns by a quarterback. Although some around the league see some major challenges in store for Newton, he says he won't change his approach to the game in year two. The Panthers are scheduled to open their regular season on Sunday, Sept. 9, against the Tampa Bay Buccaneers in Tampa, Fla. (AP Photo/Bob Leverone, File)

ADVANCE FOR WEEKEND EDITIONS, SEPT. 8-9 - FILE - In this Aug. 17, 2012, file photo, Carolina Panthers quarterback Cam Newton, center, directs his team against the Miami Dolphins during the first quarter of a preseason NFL football game in Charlotte, N.C. Newton is coming off a spectacular season in which he set a record for yards passing in a season by a rookie and rushing touchdowns by a quarterback. Although some around the league see some major challenges in store for Newton, he says he won't change his approach to the game in year two. The Panthers are scheduled to open their regular season on Sunday, Sept. 9, against the Tampa Bay Buccaneers in Tampa, Fla. (AP Photo/Chuck Burton, File)

FILE - In this Aug. 17, 2012 file photo, Miami Dolphins' Sean Smith (24) intercepts a pass intended for Carolina Panthers' Steve Smith (89) during the first quarter of a preseason NFL football game in Charlotte, N.C. The Kansas City Chiefs have agreed to terms with Smith on a three-year deal to help shore up the secondary. Smith has spent the past four seasons with the Dolphins, starting every game each of the past two years. (AP Photo/Nell Redmond, File)