The craziest athlete's in the world must be downhill skiers.
Football players might get a concussion, and/or a torn ACL.
These skiers are always introduced as "Next up is Yngvei from Norwegia, fresh off of spine replacement surgery..."
Then their human interest/backstory piece fades in with "They said I'd never walk again, much less ever strap on another ski"
Then they laugh in the face of God by ignoring this near death experience and keep doing the same thing all over again (now with their new pig spine). Despite the work of an army of health care pros and physical therapists they go back out to break their central nervous system again.
They are nuts. You can't really tell on TV just how steep that slope is. They have some POV videos out there. While falling down a mountain at insane speeds you can't even see what's past the next blind turn.