Kenneth Walker, running back for the Seattle Seahawks, did not participate in Thursday's practice due to a shoulder injury and illness. He was present at practice but did not take part in drills. If he continues to be a non-participant, he will have one more chance to practice before the Seahawks make a decision on his status for Sunday's game against the Steelers. In Week 16, Walker had 56 yards from scrimmage on 17 touches and a 58 percent snap share.