Steelers will be short in the backfield against the Bengals

Steelers quarterback Ben Roethlisberger appears to be fine after rolling his ankle in practice Thursday, but he’s going to be short on help in the backfield. According to Gerry Dulac of the Pittsburgh Post-Gazette, running backs Rashard Mendenhall and Isaac Redman won’t play Sunday against the Bengals after being held out of practice Friday. They’re…