That was a nasty hit. His head bounced off the turf like a basketball. Hope he's just woozy and nothing more.
I'm about fed up with the clueless announcers excuse-making about how it was a clean hit. Green (the quarterback) was already sliding when the defender lowered and shifted to aim his shoulder pad full speed into Green's helmet. BS about the claim that he was blocked into Green, he knew exactly what he was doing.