Pierre (concussion) was a full participant in Thursday's practice, Teresa Varley of the Steelers' official site reports.
Pierre remains in the league's concussion protocol, but his upgrade to a full practice Thursday is another step in the right direction toward eventually being cleared. The cornerback exited last Sunday's loss to the Bills due to the injury, with newly signed Asante Samuel replacing him. The starting outside cornerback might find himself opposite Samuel for Sunday's matchup with the Ravens if Joey Porter (elbow) is unable to suit up.