Bounced his head off the turf is correct. It looked a little bit suspicious at the time as the defensive player (#19) used both hands to actually slam his head to the ground, as Chaca was horizontal and going down. The right side of his head was smashed to the ground. Chaca was instantly unconscious in a “frozen” position. The defensive player looked up as if he had been caught but no foul was called so after looking down at his handiwork being attended to, he walked off. I presumed that it was ok with the officials.
Late in the game as Columbus had it well under control, the Cardinals put their back-ups in to finish out the game. #19 put a similar hit on the little Freshman quarterback. He left the field on his own but didn’t return, so I don’t know if he was hurt or not. But he took a shiver to the head. Still no call.