Tillman questionable for Steelers game

LAKE FOREST, Ill. -- Chicago Bears cornerback Charles Tillman returned to the practice field Friday, but is officially listed as questionable for Sunday's game at Pittsburgh.

Receiver Brandon Marshall (back) also returned to practice and is probable, along with tight end Martellus Bennett (shoulder) and guard Kyle Long (back).

Tillman's questionable designation means there is a 50 percent chance he’ll play. But the veteran hasn’t missed a game since the 2009 season finale at Detroit.

“He worked today. He worked about half the reps,” Bears coach Marc Trestman said. “We’ll leave it up to Charles and our trainers to see where he is. We’re optimistic, but we don’t know right now. That’s why he’s listed the way he is.”

Tillman spent the majority of Thursday’s practice with the team’s athletic trainers doing conditioning work, before participating in the team’s walk-through. The team sat Tillman for Wednesday's and Thursday’s workouts, but he participated more on Friday.

Marshall, meanwhile, dealt with hip issues early on stemming from his third arthroscopic knee surgery, but on Thursday experienced some tightness in his back toward the end of a workout, prompting the staff to remove him from practice as a precautionary measure.

While Bennett and Long were listed on the injury report, both participated fully in every practice this week.