Collie's concussion again raises helmet hit issue

Indianapolis Colts quarterback Peyton Manning walks off the field after an NFL football game against the Philadelphia Eagles, Sunday, Nov. 7, 2010, in Philadelphia. Philadelphia won 26-24. (AP Photo/Matt Slocum)

Indianapolis Colts quarterback Peyton Manning walks off the field after an NFL football game against the Philadelphia Eagles, Sunday, Nov. 7, 2010, in Philadelphia. Philadelphia won 26-24. (AP Photo/Matt Slocum)

More Photo Galleries

Happening Now