Slightly off topic but my bro is a bodybuilder and owns his own Gym. When I said the fight might not happen due to steroid issues he laughed and said all top boxers are probably taking steroids. As are UFC fighters...

Now my brother only has a passing interest in boxing so is probably just talking out his arse. He also reckons they aren't even tested for drugs in UFC I haven't a clue as I don't follow it.

But if the current procedures for testing in boxing are insufficent as Floyd claims, then it stands to reason boxers would cheat. With so much emphasis on power and strength in the sort, it shouldn't really be so surprising..