The*Steelers placed center/guardCody Wallace *on the team's Reserve/Injured List, it was announced today.
Wallace, who injured his knee during the preseason, had been inactive for the team's first seven games of the season.
The Steelers signed cornerback Al-Hajj Shabazzto the team's active roster from the practice squad. Shabazz made his NFL debut in Week 5 vs. the N.Y. Jets. He has spent all other weeks on the Steelers' practice squad this season.