You know the recent news of concussions linked to brain damage and brain trauma in the NFL? Now it's been connected to hockey.
Hockey is a violent sport, although not as overtly violent as boxing or football. Men do square off in hockey and duke it out; in fact, there's at least one bruiser or enforcer on each team to take care of all the rough stuff. There are crushing checks into the boards that bring a rise out of the fans and are catalogued in highlight reels as often as big football hits.
So, yes, it shouldn't surprise us that a hockey player should have "brain damage due to repeated head trauma."
Now let's see what the NHL does about this.