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Nick Diaz says GSP was on 'steroids' and 'missed weight' by three pounds at UFC 158

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Esther Lin

Former UFC welterweight title challenger Nick Diaz accused Georges St-Pierre of being on steroids and missing weight by three pounds in their highly anticipated title fight back in March 16, 2013 at UFC 158 in GSP's hometown of Montreal, Quebec, Canada.

"Georges St-Pierre was on steroids when I fought him," said Diaz on Chael Sonnen's podcast You're Welcome.

Diaz, who's had a well-known history of testing positive for marijuana in his career, is convinced Quebec's athletic commission didn't properly test the UFC 158 fighters because he would have failed the test.

"They didn't test us because I would have tested positive for sure. I thought it was my last fight ever. What do I care? It's like almost asking too much to win and not give away that fine. I'm like what do I care about the fine?" said Diaz.

Following UFC 158, the former Strikeforce welterweight champion did in fact retire, but came back almost two years later for a super fight with Anderson Silva where he tested positive for marijuana.

Additionally, Quebec's athletic commission did release a statement saying that all drug tests came back clean, but they didn't mention the names of the six fighters they tested out of the 24 fighters that competed at UFC 158.

"That dude needs to come back and give me another fight as far as I'm concerned. As long as I can fight. They did not test him for steroids for that fight. They did not test us."

Apart from saying that GSP was on steroids, Diaz also believes that GSP didn't make the 170-pound weight limit for welterweight title fights.

"He missed f---ing weight. He f---ing missed weight. He didn't make weight. How is that not news? That's why they wanted that fight over there (in Canada). So he could f---ing cheat. I would have knocked that motherf---er out. He was not as good as me. There's no way that guy's as good as I am. There's f---ing no way. He held on the whole fight. In Pride FC and real rules, in real fights, you f---ing didn't fight the whole fight. I'm over here trying to fight. Neither of us are fighting, you're f---ing holding onto my leg, holding onto me around the waist the whole fight and any time you're not, you're getting punched up."

"He didn't have to make weight. I should get another fight just by default on account of him being three pounds over," said Diaz.

Although it appears GSP weighed-in at 170 pounds at the official weigh-ins, Diaz is still skeptical about the result.

"I really f---ed up by not walking up to the scale and looking at really how much over he was. He could have been seven pounds over. I don't f---ing know. They're in Canada, and it's their beloved Georges St-Pierre. That's what happened there."