In July, Mayra Bueno Silva picked up the biggest win of her UFC career when she submitted former UFC women's bantamweight champion Holly Holm. The second-round stoppage earned the 32-year-old Brazilian a "Performance of the Night" bonus and moved her from No. 10 in the official UFC rankings in the weight division to No. 3. A little more than a month after her win, Silva announced that she had failed a drug test related to the July 15 matchup.