You know B.J. Penn wasn't going to keep quiet about this for long. Ever since BJ completely skewered Sean Sherk about his positive steroid test in 2007, it's always been pretty obvious where Penn stands when it comes to performance enhancing drugs. And he took to his twitter to make his feelings about Nate Marquardt's situation perfectly clear:

All this testosterone replacement therapy stuff is total BS BJ PENN

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A true martial artist would never consider cheating! BJ PENN

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Fighters on roids=blue collar crime Coaches of fighters on roids=white collar crime BJ PENN

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Everyone has to come together and get this "ped" cancer out of our sport! BJ PENN

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He goes onto explain a little more in response to people that tweeted him, saying he's done 15 years of research into this stuff and that someone could die in the cage. At least you can always count on BJ to call it how he sees it.