I haven't yet seen the play, forgot to watch for video and can't see video at work, but I'm led to understand he "clearly" was knocked out for a moment on the field.
This is a bad situation Pittsburgh has been doing. Mocking Roethlisberger for his concussion and pretending that Ward, (some DB last year), Polamalu (twice) don't have concussed symptoms and putting them right back out genuinely concerns me. It seems to be an organizational issue, given the repeated instances of pooh poohing the severity of it. I hope it doesn't bite the players in the backside and lead to permanent and long term damage. TroyP is one of my favorite players in the NFL, even though he bugs the shit out of me because he's so effing good. I can't express enough how tragic it would be if he ended up debilitated because of pressure to play. This would be his fourth, or fifth, concussion if all were reported honestly.
Even if the Steelers weren't our opponent this week, I would still say this.