The Steelers started official practice preparations on Wednesday for the Sunday game versus the San Diego Chargers. CB Bryant McFadden (forearm), TE Heath Miller (ankle), T Marvel Smith (back), CB Deshea Townsend (hamstring), WR Hines Ward (not injury related) and LB LaMarr Woodley (calf) all did not participate in practice today. QB Ben Roethlisberger and RB Willie Parker practiced fully with the team. Smith, Ward and Woodley are all expected to give it a go on Thursday. McFadden, Miller and Townsend are all expected to be out this week with injuries.