UFC President Dana White is known for not pulling his punches. He immediately fired Nate Marquardt after Nate failed to be medically cleared to fight by the Pennsylvania State Athletic Commission. White spoke to MMA Fighting about the decision (transcription via MMA Torch):
"No I will not [bring him back]," he reiterated. "This is a tough thing for me to talk about. It's tough to talk about stuff like this when you can't talk about it. The way I look at it, you know he already tested positive for steroids once. Then he has this issue in New Jersey, and now this issue here going into [Pittsburgh]. It's an issue. People are like 'give him a second chance.' This would be a fourth chance.
"Do I think he was trying to cheat? Let's put it this way, he was either trying to cheat, or he has a horrible doctor," White said. "You tell me, which one is it, I don't know. This is one of those things where I can't talk about this guy's medical records but it's pretty clear what this is.
"Nate Marquardt's a really nice guy," White said. "He's sweet, he's polite, he's very humble. But it is what it is. Like I said to the media earlier, it's a lot easier to go after Josh Barnett. He's abrasive and rude, and he's a d***. It's easier to point at Josh Barnett and go, 'ugh, Josh Barnett.' What's the difference? The difference is Nate Marquardt is really nice, and a real humble and sweet guy."
"I'm no doctor but this whole testosterone replacement therapy I guess is basically for guys who get to a certain age, which is normally supposed to be in your 40s, or even 50s where your testosterone levels start to drop so they give you just a little bit to keep a young man's level," White said. "These guys who used steroids before have trouble producing testosterone so they have to bump their levels up. But when your levels get bumped above what it normally should be, that's performance enhancing, as far as I'm concerned and I'm sure as far as many athletic commissions are concerned.
"It's an ugly loophole. I think there [are] guys that need to do it because they have to, but then there [are] guys doing it because you can do it, because you can say 'I'm in here for testosterone replacement.' If you're a professional athlete, you should be going to a credible doctor who says 'yes you need this thing because your testosterone is low and we're going to give you [a small amount] to boost you up to the right levels' and when you do your blood tests your levels should be what a normal guy's levels should be.
"Chael Sonnen, I think a lot of people want to see Sonnen fight," he said. "This guy made some bad choices, made some mistakes, has paid his dues and now he gets to come back and hopefully do things smarter this time."