Philadelphia Eagles LB Duke Riley (biceps), TE Richard Rodgers (ankle), CB Kevon Seymour (knee) and DE Josh Sweat (wrist) did not participate in practice Friday, Dec. 25, and have been ruled out for Week 16. DT Fletcher Cox (neck) did not practice and is listed as questionable. DE Derek Barnett (calf) was limited during practice and is listed as questionable. P Cameron Johnston (concussion) fully participated in practice but is listed as questionable. CB Grayland Arnold (hamstring), RB Jason Huntley (illness) and CB Darius Slay (concussion) fully participated in practice and are not on the injury report.