Panthers head coach Ron Rivera walks across the practice fields as linebackers Thomas Davis (58) and Jon Beason (52) follow at the Carolina Panthers training center in Charlotte, N.C., Thursday, May 24, 2012.

Quarterback Cam Newton (1) winds up to throw a pass at the Carolina Panthers training center in Charlotte, N.C., Thursday, May 24, 2012.

Rookie wide receiver Joe Adams (15) grabs a pass across the middle at the Carolina Panthers training center in Charlotte, N.C., Thursday, May 24, 2012.

Quarterback Cam Newton (1) winds up to throw a pass at the Carolina Panthers training center in Charlotte, N.C., Thursday, May 24, 2012.

Rookie Amini Silatolu (61) asks veteran lineman Jordan Gross (69) for some guidance at the Carolina Panthers training center in Charlotte, N.C., Thursday, May 24, 2012.

After sitting last season out due to injury, Thomas Davis (58) makes his way to the practice fields at the Carolina Panthers training center in Charlotte, N.C., Thursday, May 24, 2012.

Quarterback Cam Newton (1) jokes with teammates on his way to the practice fields at the Carolina Panthers training center in Charlotte, N.C., Thursday, May 24, 2012.

Quarterback Cam Newton (1) strikes a pose for the media as he pauses on his way to the practice fields at the Carolina Panthers training center in Charlotte, N.C., Thursday, May 24, 2012.

Cam Newton (1) jokes with running backs DeAngelo Williams (34) and Jonathan Stewart (28) as the three make their way to the practice fields at the Carolina Panthers training facility in Charlotte, N.C., Thursday, May 24, 2012.

Luke Kuechly (59), the Panther's first draft pick, makes his way onto the practice fields at the Carolina Panthers training camp in Charlotte, N.C., Thursday, May 24, 2012.

FILE - This Dec. 24, 2011 file photo shows Tampa Bay Buccaneers' Kellen Winslow on the sidelines during an NFL football game against the Carolina Panthers, in Charlotte, N.C. The Buccaneers traded Winslow to the Seattle Seahawks for a draft pick on Monday night, May 21, 2012, and signed former Colts star Dallas Clark to replace him.

FILE - This Dec. 24, 2011 file photo shows Tampa Bay Buccaneers' Kellen Winslow (82) leaping over a Carolina Panthers player as Panthers' Jordan Senn (57) closes in during the second quarter of an NFL football game in Charlotte, N.C., Saturday, Dec. 24, 2011. The Buccaneers traded Winslow to the Seattle Seahawks for a draft pick on Monday night, May 21, 2012, and signed former Colts star Dallas Clark to replace him.

Tampa Bay Buccaneers' Kellen Winslow (82) on the sidelines against the Carolina Panthers during an NFL football game in Charlotte, N.C., Saturday, Dec. 24, 2011. The Panthers won 48-16.

Carolina Panthers' Chris Manno runs a drill during the NFL football team's minicamp practice for rookies and free agents in Charlotte, N.C., Sunday, May 13, 2012.

Carolina Panthers head coach Ron Rivera attends the NFL team's minicamp football practice for rookies and free agents in Charlotte, N.C., Sunday, May 13, 2012.

Carolina Panthers' Schuylar Oordt works on a blocking sled during the NFL team's minicamp football practice for rookies and free agents in Charlotte, N.C., Sunday, May 13, 2012.

Carolina Panthers' Frank Alexander works on a blocking sled during the NFL team's minicamp football practice for rookies and free agents in Charlotte, N.C., Sunday, May 13, 2012.

Carolina Panthers' Brad Norman punts during the NFL football team's minicamp practice for rookies and free agents in Charlotte, N.C., Sunday, May 13, 2012.

Carolina Panthers' Tauren Poole runs a drill during the NFL football team's minicamp practice for rookies and free agents in Charlotte, N.C., Sunday, May 13, 2012.

Carolina Panthers coach Ron Rivera watches the NFL football team's minicamp football practice for rookies and free agents in Charlotte, N.C., Sunday, May 13, 2012.

CHARLOTTE, NC - MAY 12: Nate Chandler #66 at Carolina Panthers Rookie Camp on May 12, 2012 in Charlotte, North Carolina. (Photo by Brian A. Westerholt/Getty Images)

CHARLOTTE, NC - MAY 12: Reggie Sullivan #36 at Carolina Panthers Rookie Camp on May 12, 2012 in Charlotte, North Carolina. (Photo by Brian A. Westerholt/Getty Images)

CHARLOTTE, NC - MAY 12: Chris Manno #18 at Carolina Panthers Rookie Camp on May 12, 2012 in Charlotte, North Carolina. (Photo by Brian A. Westerholt/Getty Images)

CHARLOTTE, NC - MAY 12: James Davis #31 at Carolina Panthers Rookie Camp on May 12, 2012 in Charlotte, North Carolina. (Photo by Brian A. Westerholt/Getty Images)

CHARLOTTE, NC - MAY 12: Terence Edge #79 at Carolina Panthers Rookie Camp on May 12, 2012 in Charlotte, North Carolina. (Photo by Brian A. Westerholt/Getty Images)

CHARLOTTE, NC - MAY 12: Carlton Powell #93 at Carolina Panthers Rookie Camp on May 12, 2012 in Charlotte, North Carolina. (Photo by Brian A. Westerholt/Getty Images)

CHARLOTTE, NC - MAY 12: Dominique Harris #21 at Carolina Panthers Rookie Camp on May 12, 2012 in Charlotte, North Carolina. (Photo by Brian A. Westerholt/Getty Images)

CHARLOTTE, NC - MAY 12: Jared Green #9 at Carolina Panthers Rookie Camp on May 12, 2012 in Charlotte, North Carolina. (Photo by Brian A. Westerholt/Getty Images)

CHARLOTTE, NC - MAY 12: Ben Jorden #29 at Carolina Panthers Rookie Camp on May 12, 2012 in Charlotte, North Carolina. (Photo by Brian A. Westerholt/Getty Images)

CHARLOTTE, NC - MAY 12: Jarrett Brown #11 at Carolina Panthers Rookie Camp on May 12, 2012 in Charlotte, North Carolina. (Photo by Brian A. Westerholt/Getty Images)