actually, genetics is really the key, same with most sports, many pro bb's don't train once off drugs, who really gives a shit?
what happens to a pro football player once they retire?
What, genetics to drug response? Currently, pro bb is based on lies and faggotry IMO. The sooner you accept that, the better. The reason Tom Prince and Levrone are tiny now, is because they dont juice. Sure they have great genetics, but without the drugs they are average guys with good genetics. Shit, most retired pros are still juiced to the gills, and that's why they are "big". I see guys in better shape than levrone, that drink all weekend, and eat shit.
Pro football players are usually really banged up from actual atheltic competition, so many have health problems. I think even comparing the two sports - (bb is not a sport), is insanity.