I think the OP didn't word the whole thing properly and that's what got him into trouble at first. But yeah, I understand what you're asking.
In the hockey world,
Connor McDavid is the greatest. I've seen people pay $50,000 USD for his rookie card, and I often wonder what would happen to his card prices if he suffered a career-ending injury or something like that. He has suffered some pretty nasty injuries in the past, but recovered from them. It's pretty scary stuff. Here is one below:
https://www.youtube.com/watch?v=bni6...nnel=SPORTSNET