The Pittsburgh Steelers have signed running back Najeh Davinport. Davenport who was released in June after the Steelers additions of 1st round pick Rashard Mendenhall and Mewelde Moore, will be counted on until Willie Parker returns to action. Davenport failed to land another job and there was minimal interest in Davenport around the league. Mike Tomlin indicated today at his press conference that the team will sign two running backs. The Steelers have had discussions with others but there has been no confirmation that the Steelers are bringing in another back for a workout. Running back Gary Russell is currently on the practice squad