Pittsburgh Steelers RB Fitzgerald Toussaint (concussion) and LB James Harrison (shoulder, triceps) fully participated in practice Friday, Jan. 20, and are listed as questionable for the AFC Championship game. LB Anthony Chickillo (ankle), FS Sean Davis (shoulder), C B.J. Finney (illness), WR Darrius Heyward-Bey (illness), DE Ricardo Mathews (ankle), QB Zach Mettenberger (illness) and LB Vince Williams (shoulder) fully participated in practice and are not on the injury report.