Detroit Lions running back David Montgomery suffered a thigh injury during Sunday's game against the Seattle Seahawks and expects to take a couple of weeks to heal. Montgomery was carted off the field in the fourth quarter and was seen limping after the game. Lions coach Dan Campbell described the injury as a thigh bruise and will provide more information on Monday. Montgomery has been performing well in his first season with the Lions, rushing for 141 yards and two touchdowns in his first two games.