"I believe that he's on plenty of steroids," Diaz said in the interview, in reference to St-Pierre. "And I don't think they test around here and I don't think I'll be tested as well. I don't care what they're saying or marketing to the media, I don't think either of us are going to be tested and if so, he's probably got a bottle of piss in his pocket. I doubt they're standing over him making sure he's not on steroids."
Diaz has already been popped twice for marijuana use, and he didn't exactly say he quit smoking in the aftermath.
"I think [at UFC 143] I tested for a metabolite or a nanogram, it was hardly [a trace] so I just did a little more than I did last time so, sorry if I don't pass the test, but I think it should work out," Diaz said. "I've passed plenty of them before, unless they just weren't testing me. I wonder how much they test people around here (glancing at St. Pierre)."
It's unclear at this point what reason Diaz has to claim St-Pierre is using performance-enhancing drugs, except to maybe sell a few extra pay-per-views by starting a baseless "beef."
"You really think I'm afraid of you? Do you really think, I'm afraid of you, man? Are you crazy in your head, man? I'm not scared of you! We'll see Saturday if I'm scared of you!" St-Pierre said to Diaz.
St-Pierre are Diaz are set to do battle on March 16, in the main event of UFC 158, live from Montreal, Canada.