Charles Tillman was a limited practice participant today, after missing the last two days because of a knee injury. If Tillman isn't able to go, expect the Bears to start Zach Bowman opposite Tim Jennings.
The Bears list three as probable, Brandon Marshall (WR), Martellus Bennett (TE), and Kyle Long (G). All three had full participation at today's practice, although Marshall left early due to back tightness.
The Bears are optimistic that all four players will be good to go on Sunday.
For the Pittsburgh Steelers, cornerback Cortez Allen is ruled out, and running back Le'Veon Bell is listed as questionable. Pittsburgh could use a boost from the rookie tailback, as they have the 31st ranked rushing attack in the NFL.
Listed as probable for the Steelers are, Heath Miller (TE), Steve McLendon (DT), Brett Keisel (DE), Jarvis Jones (LB), and Curtis Brown (DB). I would expect these five to all play.