ALLEN PARK, Mich. -- Detroit Lions right guard Larry Warford suffered a concussion during the fourth quarter Thursday against the Philadelphia Eagles.
Lions coach Jim Caldwell said Friday that Warford is going through the league's five-step concussion protocol.
Warford's final series came with about eight minutes left in the 45-14 win over the Eagles before he was replaced by Manny Ramirez.
Caldwell had little to update on either of his other two injured players from Thursday. Free safety Glover Quin suffered an ankle injury in the first quarter and was in a walking boot after the game, but Quin said he was "fine.