Not all, but many.
This was how I closed my opening post. Clearly I was not asserting ALL athletes use.
I have personally known someone (a rower), who I am almost certain to have been clean, and she had constantly issues with her ribs breaking - simply because she was so strong that her ribs could not handle the stress put upon them by her muscles.
There are many athletes out there like your friend, I get that also.
But are you trying to say Nfl football players don't juice?...or at least a large majority of them don't.?
Cuz if that's your belief, you're kidding yourself.