LAS VEGAS -- In a stunning development, both fighters who competed in the main event of UFC 183, Anderson Silva and Nick Diaz, failed their drug tests.
Silva, the legendary ex-UFC middleweight champion who is widely regarded as the greatest mixed martial arts fighter in history, tested positive for two anabolic steroids, drostanolone and androstane. For the third time in his career, Diaz had elevated levels of marijuana metabolites in his system.
Even more stunning news about Silva is that the drostanolone and androstane were discovered as part of an out-of-competition test given by the Nevada Athletic Commission on Jan. 9. But the Salt Lake City-based Sports Medicine Research & Testing Laboratory did not return the result to the commission until Tuesday.
Anderson Silva and Nick Diaz fail drug tests
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