Top UFC women’s bantamweight Mayra Bueno Silva is likely to have the biggest win of her UFC career overturned due to the presence of a banned substance in her system that she says stems from the use of ADHD medication. Bueno Silva, 31, defeated Holly Holm by second-round submission July 15 in the UFC on ESPN 49 main event. On Thursday, Silva has a disciplinary hearing scheduled at the Nevada Athletic Commission’s monthly meeting, which she revealed Monday is due to the failed test. “It is with deep regret that I have to announce I failed a drug test that I took the week of my fight against Holly Holm,” Bueno Silva wrote. “I want to begin by saying I have never in my life taken a substance to enhance my ability in or outside the cage. I have tested positive for a substance that is consistent with the prescription medication I take for my ADHD.
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UFC contender Mayra Bueno Silva announces positive drug test, points to ADHD medication – MMA Junkie