[firstdown]

Originally Posted by onlydarksets

The only rule I could find is this one:

http://blogmedia.thenewstribune.com/...20RULEBOOK.pdf

In the scenario you outlined, it's not violent or unnecessary (i.e., the defender can't control what the RB is going to do with his helmet).

Thats what I think and I also looked but could not find the rule either.