Very good point, people could get SEVERELY injured. Especially by that freaking monster.
He got hit for a banned substance. That could be anything such as diuretics, Advil, or steroids. I doubt it is steroids. He passed all the tests leading up and failed the one closest to the fight. Not saying he has never been on PEDS, but it is doubtful that that is what he tested positive for. The USADA testing is very thorough. They don't just test for steroids. Lots of other banned substances. Half the stuff you can buy at GFC would get you to test positive for banned substances.