Even though Steelers safety Troy Polamalu fears one day he will take a blow to the head that will result in serious long-term negative effects on his brain, he has no plans to change his playing style. Speaking publicly for the first time since being knocked out of Sunday's win against Kansas City due to concussion-like symptoms, Pittsburgh's All-Pro safety said he feels good. He practiced on Friday and is listed probable for Sunday's AFC North showdown between the Steelers (8-3) and Bengals (7-4). Polamalu said he plays with a perpetual internal struggle between the constant threat of serious injury and not letting it affect his performance. "That's the fear I think that any player faces," he said. "And that's the fear that any individual faces, overcoming any certain fears of being a coward, you know, and letting your teammates down or turning down a hit. That's the beautiful thing about sports is these fears are right in your face and it's pretty obvious if you turn them down or not. "Oh, I have the fear, no question about it," Polamalu added. "But I'm willing to fight it, for sure."