Victor Conte, the man behind one of the biggest steroid abuse scandals in history of US sports, said recently that a majority of UFC fighters are using performance enhancing drugs (PEDs).

“Do I believe that 90%… are using some sort of performance enhancing drug in the UFC? I do,” said Conte. “But there are those that do not and I think that number’s going to grow over time. They realize that the testing is weak. The Nevada Commission’s testing is weak.”

“And listen, Dana White’s a very smart man. [NSAC executive director] Keith Kizer’s a very smart man, and he’s an attorney. But the logic for argument that they present in this particular situation just does not fly,” Conte told Ariel Helwani of MMA Hour.