Originally Posted by Fiddler
You can hit a runner or a receiver in the head, as long as they aren't defenseless. If they've got the ball & they're on their feet, you can hit him in the head.
When the QB crosses the line, he's not a QB unless he slides. His head is fair game.
That leaves uswith one of two options:
1) The refs blew that call.
2) Your interpretation of the rule is incorrect.
Either is plausable considering ....