Carolina Panthers' Dan Morgan (55) is shown in an NFL football game in Charlotte, N.C., Sunday, Sept. 16, 2007...

Dan Morgan and Keith Brooking

Carolina Panthers v Chicago Bears CHICAGO - JANUARY 15: Linebacker Dan Morgan #55 of the Carolina Panthers walks off the field against the Chicago Bears in their NFC...

CHICAGO - JANUARY 15: Linebacker Dan Morgan #55 of the Carolina Panthers plays defense against the Chicago Bears in their NFC Divisional Playoff...

Carolina Panthers v Denver Broncos DENVER - OCTOBER 10: Linebacker Dan Morgan #55 of the Carolina Panthers charges forward during a NFL game against the Denver Broncos on...

...York. The Bills defeated the Jets 17-14. (Photo by Tom Hauck/Getty Images) Carolina Panthers' Dan Morgan, left, brings down New England Patriots' Sammy Morris, right, during the first quarter in a preseason...

Carolina Panthers' Dan Morgan (55) is shown in an NFL football game in Charlotte, N.C., Sunday, Sept. 16, 2007...

...LOUIS, MO - SEPTEMBER 9: Steven Jackson #39 of the St. Louis Rams runs the ball against Dan Morgan #55 of the Carolina Panthers during the NFL game on September 9, 2007 at the Edward...

Carolina Panthers' Dan Morgan, left, brings down New England Patriots' Sammy Morris, right, during the first quarter in a preseason...

...NC, USA; New England Patriots running back (39) Laurence Maroney runs as Carolina Panthers linebacker (55) Dan Morgan defends in the first half during a pre-season game at Bank of America Stadium. Mandatory...

Carolina Panthers' Dan Morgan, left, brings down New England Patriots' Sammy Morris, right, during the first quarter in a preseason...

Dan Morgan of the Carolina Panthers during the Panthers 32-29 loss to the New England Patriots in...

Dan Morgan of the Carolina Panthers during the Panthers 32-29 loss to the New England Patriots in...

Dan Morgan (left) never considered retirement despite suffering several concussions

Dan Morgan missed five games last season due to injury