FILE - Carolina Panthers' Steve Smith, left, and Cam Newton, right, share a laugh during the first half of an NFL preseason football game against the Pittsburgh Steelers, Thursday, Aug. 29, 2013, in Charlotte, N.C. (AP Photo/Mike McCarn, File)FILE - Carolina Panthers' Steve Smith (89) and Cam Newton (1) celebrate Smith's touchdown catch against the Oakland Raiders during the first half of an NFL football game in Charlotte, N.C., Sunday, Dec. 23, 2012. (AP Photo/Mike McCarn, File)
FILE - Carolina Panthers' Steve Smith, left, and Cam Newton, right, share a laugh during the first half of an NFL preseason football game against the Pittsburgh Steelers, Thursday, Aug. 29, 2013, in Charlotte, N.C. (AP Photo/Mike McCarn, File)
