PITTSBURGH — Cincinnati Bengals rushing leader Cedric Benson was pulled during the second quarter of Sunday's game against Pittsburgh with an unspecified hip injury, returned for one series, then left the game.

After Benson was treated at halftime, the Bengals said he was not expected to return to the game.

Benson was replaced by Bernard Scott in the second quarter during a drive in which Cincinnati went three and out, not long after Scott scored on a 96-yard kickoff return. Benson came back for the next series just before halftime.

Benson had three 100-yard games in his previous four starts and began the game second in the NFL with 837 yards rushing. He had 22 yards on seven carries before leaving.