Anderson Silva and Nick Diaz failed their post-fight drug tests from the recent UFC 183 card.
Silva earned a decision in his first fight back since 2013 in Las Vegas. Diaz was also returning from an extended layoff.
Iole mentioned on Twitter that the former UFC middleweight champion failed his test due to a pre-fight test given to him. Silva broke his leg late in 2013 vs. Chris Weidman.
For Diaz, the failed test was for marijuana.
Anderson Silva AND Nick Diaz fail drug tests … Silva's failure was on a PRE-FIGHT test. Diaz post-fight test for marijuana. Story coming
— Kevin Iole (@KevinI) February 4, 2015
The UFC issued a statement regarding Silva’s failed test, saying he was found to have Drostanolone metabolites during an out-of-competition test given on January 9.
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. 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 UFC has a strict, consistent policy against the use of any illegal and/or performance enhancing drugs, stimulants or masking agents by its athletes.
Silva was also found to have androstane in his test, according to a report by Yahoo! Sports, which was examined by the Salt Lake City-based Sports Medicine Research and Testing Laboratory. They provided the results to the Nevada Athletic Commission on Tuesday.
Francisco Aguilar, chairman for the NAC, said had the results been given to them before the fight, it could have been called.
“I would have had no problem calling the fight once I had this result,” Aguilar said. “Those are not acceptable substances. But at the very least, by doing this out-of-competition test, we found this. We wouldn’t have known had we not done the out-of-competition test.”
The UFC has also released a statement regarding the failed test by Diaz, which marks his third for marijuana:
The UFC has been notified by the Nevada State Athletic Commission that Nick Diaz has tested positive for marijuana metabolites following his fight with Anderson Silva at UFC 183 on Jan. 31 in Las Vegas, Nev. The UFC has a strict, consistent policy against the use of any illegal and/or performance enhancing drugs, stimulants or masking agents by our athletes.
As a result of his positive test, Diaz has been informed that he has violated the UFC Fighter Conduct Policy and Promotional Agreement with Zuffa, LLC. The UFC organization will fully respect the Commission’s final decision relating to Diaz at a disciplinary hearing set for February 17.