Video: Big John McCarthy clarifies what an illegal head strike looks like

Chances are a blow to the back of the head isn’t what you think it is. Even I was surprised by the narrow parameters of what constitutes such an illegal strike (and I’m the first one to cry foul whenever they occur). This video with “Big John” McCarthy certainly clarifies the matter and is mandatory viewing for anyone who’s ever voiced an opinion on the subject. Are you paying attention, Mario Yamasaki?