Since the dawn of boxing, losing fighters have claimed they were drugged by an opponent/promoter/bettor in order to make them lose. I'm curious about cases that were confirmed, any times that it actually happened. So far, I've found one (maybe): This content is protected The article is fascinating reading about the early days of amphetamine/anabolic steroid use in athletics. Apparently anabolics were pioneered in part by a doctor who was treating the 1960 US Olympic team. Let me know if you've read about other cases, or have any theories about when or how often this has happened.