Article Photos: Eagles QB Vick has 'pretty significant' concussion

Philadelphia Eagles quarterback Michael Vick walks towards the sidelines in the first half of an NFL football game against the Dallas Cowboys, Sunday, Nov. 11, 2012, in Philadelphia. (AP Photo/Julio Cortez)

Philadelphia Eagles quarterback Michael Vick walks towards the sidelines in the first half of an NFL football game against the Dallas Cowboys, Sunday, Nov. 11, 2012, in Philadelphia. (AP Photo/Julio Cortez)