Mitchell is battling a hamstring injury, and didn't practice on Wednesday, and was limited on Thursday and Friday. The Steelers traded for J.J. Wilcox before the start of the season, and he is likely to replace Mitchell at free safety.

Linebacker William Gay, who missed practice on Friday with an illness, is inactive, as is receiver Eli Rogers. Rogers struggled last week in the punt return game, with a fumble that was recovered by the Bears and eventually led to a touchdown. With Rogers inactive, Justin Hunter will be active for the first time this season. Hunter signed with the Steelers as an unrestricted free agent this offseason.

Also inactive today is quarterback Joshua Dobbs, tackle Jerald Hawkins and nose tackle Vince Williams

Two key players will be active today, though. Stephon Tuitt, who hasn't seen action since the Browns game after suffering a biceps injury, and T.J. Watt, who missed last week's game with a hamstring injury, are both active.

Here are the players who will be inactive when the Steelers take on the Ravens.

Steelers Inactives

No. 5 QB Joshua Dobbs

No. 17 WR Eli Rogers

No. 23 S Mike Mitchell

No. 65 OT Jerald Hawkins

No. 77 OT Marcus Gilbert

No. 92 LB James Harrison

No. 93 DT Daniel McCullers