Interesting Rule

[Old Tiger]

An important distinction from the last rule, and one Pereira says many fans don't grasp: "Unless the hit involves a defenseless player, helmet-to-helmet contact is not a penalty." That holds even if the tackler leads with the crown of his helmet. If a defender is tackling a ball carrier, which includes a quarterback who has left the pocket or a receiver who has completed a catch, then hits to the head are legal, Pereira says.

[cougartino]

Sounds like Pereira's been hit in the head one too many times. Litigation will end this rule.

[Bullaholic]

I'm going to bet that NFL officials would call a penalty if a QB is hit in the head with the crown of the helmet anywhere on the field.

[bobcat1]

I'm going to bet that NFL officials would call a penalty if a QB is hit in the head with the crown of the helmet anywhere on the field.

Yep, they are laying dead to throw the yellow hankie on that.