Some bad, bad news for the UFC…
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Silva, arguably the greatest fighter of all time, failed a pre-fight drug test for Drostanolone, a common anabolic steroid.
According to ESPN, Silva also tested positive for a second steroid called androstane.
The Brazilian returned from a year-long injury lay-off to defeat Diaz by unanimous decision at the MGM Grand Garden Arena.
The fight was not cancelled as the results of Silva’s test were not available until Tuesday.
Diaz tested positive for marijuana metabolites during a post-fight test, report ESPN.
The UFC released a statement on the situation on Wednesday:
“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. (10) out of competition drug test. UFC’s understanding is that further testing will be conducted by the Commission to confirm these preliminary results,” the statement reads.
“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.”
Diaz has previous form having been banned for six months in 2007 after testing positive for THC after his win over Takanami Gomi.
He was banned yet again for a year in May 2012 after failing a test for marijuana metabolites.
But it is the results of Silva’s test that has the potential to badly hurt the reputation of the UFC, such is the high regard he is held in.