The Steelers signed Scott to their practice squad Friday, Teresa Varley of the team's official site reports.
Scott spent the preseason with the Rams and totaled a team-leading 157 rushing yards on 36 carries while adding 10 yards on three catches across three exhibition contests. However, the veteran ball carrier was released Sunday, and he'll now add to Pittsburgh's organizational depth at running back. Scott has extensive NFL experience, totaling 1,295 career rushing yards with 16 touchdowns on 302 carries and 71 receptions for 566 yards and another touchdown over 75 regular-season games with Philadelphia covering six seasons.