Pittsburgh kept 8 defensive lineman on the initial 53-man roster as Stephon Tuitt who has not practiced summer due to a knee injury, could start the season on injured reserve, according to the Post-Gazette’s Gerry Dulac. In a major drop off, Chris Wormley is expected to see a larger role opposite Cam Heyward at defensive end. Wormley, 27, has 3.5 career sacks in four NFL seasons