'It's my fault': UFC lightweight Bobby Green disappointed after positive drug test

Popular UFC lightweight Bobby Green said in an Instagram video Friday night that he was forced out of a scheduled fight at UFC 276 due to a positive drug test.

Green said — as he was in training camp for the scheduled July 2 bout against fellow veteran fighter Jim Miller — that he received a call from the UFC informing him he had tested positive for a banned substance. Green said he believes the adverse finding came from a dehydroepiandrosterone (DHEA) supplement he was taking.

DHEA is a banned substance in the UFC's anti-doping policy, which is administered by the U.S. Anti-Doping Agency (USADA), under the anabolic category. USADA, in a statement to ESPN, confirmed Green's «adverse analytical finding,» which the agency was able to do because Green made it public first. USADA does not typically announce anti-doping policy violations until the conclusion of its adjudication process.

USADA did not comment on the substance found nor any discipline. Green said he knew he could face a longer suspension by coming forward with the information before USADA and the UFC announced it, but he wanted to be open with his fans. Green could face up to a two-year suspension for testing positive for such a prohibited drug, though a full, two-year suspension is uncommon in these situations.

Green said DHEA was recommended by a doctor he frequently watches on YouTube, and his wife bought the supplement from the company Spring Valley at Walmart. In the video, Green apologized for his mistake, said he has never tested positive before in 14 years as a professional MMA fighter and is vehemently against performance-enhancing drug use.

«I'm crushed,» Green said. «I'm like what the f---? I had no idea, guys, what I was doing, that it was wrong,