"Washington Redskins tight end Chris Cooley said Monday he suffered a concussion-inducing hit in the second quarter of Sunday night's loss to the Indianapolis Colts, but he kept playing and remained coherent until, after halftime, he felt slow and eventually pulled himself.

Speaking during his weekly appearance on WJFK's "The LaVar Arrington Show with Chad Dukes," Cooley described the process in which he suffered what he considered a "bell-ringer" of a hit, but passed doctors' tests and therefore remained in the game.

"It was right before half, and I came off the field and took a breath and said, 'Wow,' " Cooley said. "And then I went in at halftime and kind of had the idea that I could come back out, get moving around a little bit and feel okay. It wasn't like I, at the time, thought I had a bad concussion.

"I was completely there. I passed all the doctors' tests and stuff, but as I kept playing, it just started to get more and more of a headache, and I was a little bit slow, and I went over to our trainers and just said, 'It's done.' You don't want to risk it."

Cooley is just the latest Redskin to deal with what amounts to the NFL's hot-button injury. Linebacker Rocky McIntosh sat out the Indianapolis game after suffering a concussion Oct. 10 against Green Bay. Marquee running back Clinton Portis missed the final seven games of 2009 after suffering a concussion at Atlanta. "