Silva failed a pre-fight exam conducted on Jan. 9, testing positive for Drostanolone and Androstane metabolites. UFC officials dropped the bombshell in an official statement on Tuesday, and MMAWeekly.com confirmed the results with the Nevada Athletic Commission.
Diaz failed a post-fight exam for marijuana, as initially reported by Yahoo! Sports columnist Kevin Iole, and later confirmed to MMAWeekly.com by the NAC.
“On February 3, 2015, the UFC organization was notified by the Nevada State Athletic Commission that Anderson Silva tested positive for Drostanolone metabolites on his Jan. 9 out of competition drug test,” read a UFC statement. “UFC’s understanding is that further testing will be conducted by the commission to confirm these preliminary results.
“Anderson Silva has been an amazing champion and a true ambassador of the sport of mixed martial arts and the UFC, in Brazil as well as around the world. UFC is disappointed to learn of these initial results.”
The organization added that they have a strict policy against the use of any illegal and performance-enhancing drugs.
Officials have yet to comment on Diaz’s post-fight test. According to Iole, the amount Diaz tested positive for was over the allowable limit. The test result report confirms that, only noting that he tested positive for elevated levels of marijuana metabolites, but not revealing the measured level.
More as the story develops.
(Follow @Erik_Fontanez on Twitter)