It appears the Steelers will be without defensive end Stephon Tuitt and tackle Marcus Gilbert on Sunday at Jacksonville. Tuitt has an elbow injury and Gilbert will miss his fourth straight game with a knee injury. Pittsburgh has won five straight games and leads the AFC North at 6-2-and-1 overall. The Jaguars are riding a five-game losing streak and sit alone in last place in the AFC South at 3-and-6. The Jags beat the Steelers twice last season, including 30-9 in the playoffs.