Polamalu returned to practice Friday for the first time in three weeks. He was cleared to play in a game the Steelers (11-4) must win to clinch the AFC North title. A six-time Pro Bowler, Polamalu was selected as Pittsburgh's MVP this week by his teammates.
Browns running back Peyton Hillis is also active after missing all week with sore ribs. Hillis was injured in last Sunday's loss to Baltimore when he was drilled in the ribs by Ravens safety Ed Reed on his second carry.
Hillis leads the Browns with 1,164 rushing yards and has caught 60 passes for 474 yards.