Clenbuterol is widely used in the beef industry in the Americas. It is banned for use in cattle in the EU. The onus is on Contador to prove contamination, which so far he has singularly failed to do.
It's also soccerballers who've tested positive, and as we know there's no doping in Football.
It's also soccerballers who've tested positive, and as we know there's no doping in Football.