Gotta feel for these guys. Hayman looks absolutely fucked up.
https://www.youtube.com/watch?v=Y61iX_ogqwc
I have three boys and won't have them playing league or soccer because of the head knocks. Heading a soccer ball has the same effect on your brain as a punch or head clash. Instead, they all do bjj and roll around like monkeys trying to choke each other out.