On Thursday the Steelers continued practice preparations for the Sunday game versus the Tennessee Titans. As usual, T Marvel Smith (back) was not present and has long been ruled out again. DE Brett Keisel (knee) worked fully for the second straight day. S Ryan Clark (foot), LB James Harrison (foot), S Troy Polamalu (foot) and LB LaMarr Woodley all returned to practice fully after having Wednesday off. RB Willie Parker (not injury related), DE Aaron Smith (not injury related) and WR Hines Ward (not injury related) also returned to work fully on Thursday after getting their normal Wednesday day off.