QB Jay Cutler (concussion), DE Shea McClellin (concussion), DT Matt Toeaina (calf)
WR Alshon Jeffery (hand), DT Henry Melton (back)
SAN FRANCISCO 49ERS
QB Alex Smith (concussion)
CB Chris Culliver (shoulder), RB Anthony Dixon (hamstring), S Dashon Goldson (ribs), LB Tavares Gooden (elbow, quadricep), C Jonathan Goodwin (ankle), RB Frank Gore (ribs, wrist), G Mike Iupati (quadricep), WR Mario Manningham (shoulder), DT Will Tukuafu (wrist), LB Patrick Willis (shoulder)
Jason Campbell will start for the Bears in a tough matchup with the 49ers. Alshon Jeffery is expected to return at WR for the Bears. He was working as WR2 opposite Brandon Marshall before the hand injury. For the 49ers, Alex Smith will undergo final tests on Sunday, but is expected to start at QB.