When I see a guy like Matt Mittrione who was a complete bum in the NFL with minimal combat sport training become a top 10/15 fighter at heavyweight it lets me know all I need to know.
I've never seen an MMA fighter with no football experience just decide to become a top 15 NFL player. It could never happen in a billion years.
Also LOL at the idea of football players being afraid to take blows to the head. They deal with more terrifying blows to the head in football PRACTICE than you see in an MMA fight. A punch or kick to the head isn't shit compared to the repeated blows to the head that amount to small car crashes each time. These guys are dealing with much worse than fists. They leave their sport with worse head trauma than Gary Goodridge