A league source tells us that Ravens running back Willis McGahee suffered a concussion on that wicked fourth-quarter hit from Steelers safety Ryan Clark.
Per the source, McGahee is “OK.”
It remains to be seen whether the league characterizes the hit from Clark as a violation of the rules. It wasn’t a classic helmet-to-helmet hit; McGahee seemed to drop his head as Clark was approaching, and Clark appears to try to lead with his shoulder.
UPDATE: Actually, I just saw a different angle while watching the sequence of events on TiVo. It was a helmet-to-helmet hit and Clark should be suspended for the Super Bowl. Period.