Carolina Panthers' DeAngelo Williams (34) is shown during the team's NFL football training camp in Spartanburg, S.C., Wednesday, Aug. 5, 2009. (AP Photo/Chuck Burton Stock Photo - Alamy
Carolina Panthers running backs DeAngelo Williams (34) and Jonathan Stewart (28) are shown during the team's NFL football training camp in Spartanburg, S.C., Wednesday, Aug. 5, 2009. (AP Photo/Chuck Burton Stock Photo - Alamy
Carolina Panthers' DeAngelo Williams, right, takes a handoff from Cam Newton, left, at the NFL football team's training camp in Spartanburg, S.C., Friday, Aug. 5, 2011. (AP Photo/Chuck Burton Stock Photo - Alamy
25 Seasons of Panthers Football: Double Trouble in 2009
Carolina Panthers' DeAngelo Williams is shown during practice at the NFL football team's training camp in Spartanburg, S.C., Thursday, July 29, 2010. (AP Photo/Chuck Burton Stock Photo - Alamy
Carolina Panthers' DeAngelo Williams, right, takes a handoff from Cam Newton, left, at the NFL football team's training camp in Spartanburg, S.C., Friday, Aug. 5, 2011. (AP Photo/Chuck Burton Stock Photo - Alamy
Carolina Panthers running backs DeAngelo Williams (34) and Jonathan Stewart (28) are shown during the team's NFL football training camp in Spartanburg, S.C., Wednesday, Aug. 5, 2009. (AP Photo/Chuck Burton Stock Photo - Alamy
26 Deangelo Stewart Stock Photos, High-Res Pictures, and Images - Getty Images
Carolina Panthers running backs DeAngelo Williams (34) and Jonathan Stewart (28) are shown during the team's NFL football training camp in Spartanburg, S.C., Wednesday, Aug. 5, 2009. (AP Photo/Chuck Burton Stock Photo - Alamy
Carolina Panthers running backs DeAngelo Williams (34) and Jonathan Stewart (28) share a laugh as they wait their turn on the sideline during practice at Wofford College in Spartanburg, South Carolina, Tuesday