Steelers' Ryan Clark to wear special helmet

PITTSBURGH -- Steelers safety Ryan Clark is playing Sunday night against the Ravens despite suffering a concussion in two of his past three games. But Clark is taking some precautions.

He told ESPN's Rachel Nichols he will wear a special helmet tonight. It's one size bigger than usual and packed with bullet-proof Kevlar. This is the same type of helmet worn by Steelers linebacker James Harrison.

What won't change is his style of play.

"If it's the fourth quarter, [and a] two-minute drive and a guy's trying to catch the ball, I'm going to sell out every time until I'm not playing," Clark told the Pittsburgh Tribune-Review. "When I decide I can't play the way I've always played, I'll stop playing football, period."

Clark has had no worries about playing Sunday night after clearing all of the concussion tests this week. He practiced Thursday and Friday.

"People make this more dramatic than it is, and there is no drama involved in the decisions I've made," Clark said Friday. "I've only had two [concussions] and I've been playing football since I was 5. There are people with eight and 10 who still continue to play. There are people on this team who have had tons more concussions than I have who still continue to play."