NSAC: Anderson Silva failed UFC 183 post-fight drug test for anti-anxiety medication

Former Ultimate Fighting Championship (UFC) middleweight champion Anderson Silva failed an out-of-competition drug test prior to stepping into the cage to face Nick Diaz at UFC 183 on Jan. 31, 2015 in Las, Vegas, Nevada.

As a result, Anderson's first win (see it) in over two years was overturned to a "no contest." And during today's (Tues., Feb. 17, 2015) NSAC hearing (updates), the commission confirmed that Silva did indeed fail further testing administered the night of the fight.

In addition to finding drostanolone metabolites in his urine sample -- the same anabolic steroid he tested positive for on Jan. 9 via a blood test -- he was popped for oxazepam and temazepam, two forms of anti-anxiety medications.

NSAC Executive Director, Bob Bennett, told ESPN he was troubled by the findings:

"I can't speak for the (NSAC) Chairman nor can I speak for the commissioners. But something I find particularly concerning is that he tested positive on Jan. 9th and then he tested negative on Jan. 19th. If he took this orally, it only stays in your system 5-to-7 days. So, obviously, he used it sometime around Jan. 9th and then he used it shortly before the night of the fight. Whether the commission finds this egregious -- that he tested positive twice out of three times -- is up to them. I certainly find it concerning and unacceptable. It gives an unfair advantage to the person on that. God forbid, a serious injury were to occur to an opponent when someone is on something."

Silva maintained his innocence throughout the ordeal, with some of his colleagues coming to his defense by placing the blame on incompetent doctors who screwed up the tests. And you know "Spider's" family members weren't too happy with all of the backlash.

But, on the heels of this revelation, Silva's claims of innocence likely won't hold any water; perhaps even to his most die-hard supporters.

Silva was previously pulled from his duties as coach for The Ultimate Fighter (TUF): "Brazil 4" opposite Mauricio Rua and was subsequently replaced by his longtime friend and mentor, Antonio Rodrigo Nogueira. A move that was requested by the NSAC.

Silva has been temporarily suspended as a result of the findings, and is scheduled to attend a disciplinary hearing next month to receive his full punishment.

For more on Silva's failed drug test click here.