McGraw has an ankle injury that prevented him from practicing on Wednesday and Orton is still coming back from the finger injury that cost him last week's game. Orton was limited on Wednesday and he's expected to be the starting quarterback if he's healthy enough to play.
The Packers have nine players listed on their injury report and two of those guys -- OT Chad Clifton (hamstring, back) and WR Greg Jennings (knee) -- have already been ruled out.
The rest of the Packers injury report:
No practice: LB Desmond Bishop (calf), DE Ryan Pickett (concussion), RB Brandon Saine (concussion), RB James Starks (knee, ankle)
Limited practice: G Josh Sitton (knee)
Full practice: LB A.J. Hawk (calf), LB Vic So'oto (back)