It was the second time in three games Steelers safety Ryan Clark lay woozily on the ground. He took a hit to the head against Washington, and another against Kansas City in Week 10.
Clark, the heart and soul of the Steelers' defense this season, was limited practice Wednesday, and the team lists his ailment as a "concussion." No word is out on whether he failed the post-concussion tests given to players after receiving such an injury, and him practicing on a limited basis Wednesday doesn't necessarily mean he will or won't be available for the Steelers' Week 11 game against Baltimore.
If he cannot play, though, it would be another significant injury for the Steelers, who are still reeling from the loss of quarterback Ben Roethlisberger for what could be at least another few games.
Wide receiver Antonio Brown didn't practice Wednesday either, as he continues to work through a high ankle sprain suffered in the Steelers' 24-20 win over the Giants in Week 9.
"We are going to evaluate it to see where I am on Friday and hopefully it will be a great comeback," Brown said through the team's web site. "I made a lot of progress. It's getting better from last week. There is a little bit of pain. It's the game of football. You have to be strong. I am hoping to be ready to get back out there soon."
OT Marcus Gilbert and SS Troy Polamalu missed practice, as they have for the past several weeks. DE Brett Keisel (shoulder) Max Starks (ankle), Chris Carter (abdomen) and Curtis Brown (quadriceps) all missed practice, while cornerback Ike Taylor was limited due to an illness.
Running back Rashard Mendenhall practiced fully, and for the first time in a while, no running back was out or limited in practice.