Philadelphia Eagles wide receiver DeSean Jackson walks off the field with an injury in the first half of an NFL football game against the Carolina Panthers, Monday, Nov. 26, 2012, in Philadelphia. (AP Photo/Michael Perez)
Philadelphia Eagles wide receiver DeSean Jackson walks off the field with an injury in the first half of an NFL football game against the Carolina Panthers, Monday, Nov. 26, 2012, in Philadelphia. (AP Photo/Michael Perez)
Philadelphia Eagles wide receiver DeSean Jackson is pulled away by Baltimore Ravens' Arthur Jones as Jackson and Raven's cornerback Cary Williams got into a scuffle during an NFL football game, Sunday, Sept. 16, 2012, in Philadelphia. (AP Photo/The Wilmington News-Journal, Suchat Pederson) NO SALES
FILE - In this Dec. 11, 2011, file photo, Philadelphia Eagles wide receiver DeSean Jackson (10) runs during the first half of an NFL football game against the Miami Dolphins in Miami. The Eagles on Thursday, March 1, 2012, placed the franchise tag on wide receiver DeSean Jackson. (AP Photo/Lynne Sladky, File)
Eagles wide receiver DeSean Jackson celebrated after scoring a touchdown as Redskins safety LaRon Landry could only watch during Philadelphia's 59-28 Monday night win last Nov. 15. (Associated Press)
FILE - In this Dec. 19, 2010, file photo, Philadelphia Eagles' DeSean Jackson (10) returns a punt for a touchdown during the fourth quarter of the NFL football game between the Philadelphia Eagles and the New York Giants at New Meadowlands Stadium in East Rutherford, N.J. Chasing on the play are New York Giants punter Matt Dodge (6), Gerris Wilkinson (58) and Brian Jackson (22). It was the NFL's first game-winning punt return on the final play from scrimmag. (AP Photo/Bill Kostroun, File)
Philadelphia Eagles wide receiver DeSean Jackson (10) is tackled by Dallas Cowboys cornerback Alan Ball (20) and Terence Newman (41) after catching a 60-yard pass in the first half of the Eagles' 30-27 win on Sunday in Arlington, Texas. (Associated Press)
FILE - This Oct. 17, 2010, file photo shows Atlanta Falcons corner back Dunta Robinson, right, and Philadelphia Eagles wide receiver DeSean Jackson, left, helped after a hit during the first half of an NFL football game, in Philadelphia. The NFL's brain, neck and spine committee meets Wednesday, Dec. 8, 2010, to talk about possible changes to helmets and other equipment. (AP Photo/Mel Evans, File)
FILE - This Nov. 7, 2010, file photo shows Philadelphia Eagles wide receiver DeSean Jackson reacting after catching a pass in the first half of an NFL football game against the Indianapolis Colts, in Philadelphia. In a series of interviews with The Associated Press, representatives of the NFL, the NFL Players Association and the four equipment companies that make every helmet worn in the league all agreed there's no such thing as a football helmet that eliminates concussions _ nor is one on the way anytime soon. (AP Photo/Matt Slocum, File)
