Anderson Silva Fails USADA Test

The UFC announced on Friday that Anderson Silva has failed a USADA out-of-competition drug test and is out of his UFC Shanghai main event against Kelvin Gastelum later this month. The positive drug test stems from a sample collected on October 26th.

The 42 year old former middleweight champion has been provisionally suspended. Silva is now facing a full suspension from USADA, pending the adjudication and results management processes.

This is the second time that Silva has failed a drug test. Silva would be caught with the steroids drostanolone and androsterone in his system from an in-competition test in relation to a fight with Nick Diaz at UFC 183 in January 2015. He was suspended one year by the Nevada Athletic Commission (NAC) for that transgression.

At the time, Silva denied he had knowingly taken any performance-enhancing drugs, telling the commission that the steroids came from a male-enhancement product from Thailand.

USADA could take into account Silva’s previous drug-test failure in deciding a sanction, despite it coming before the UFC partnered with USADA for the promotion’s anti-doping program.

In a release, the UFC said it was seeking a replacement to fight Gastelum on Nov. 25. That card is the UFC’s first in mainland China.

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