Just a month and a half after Chael Sonnen tested positive for performance enhancing drugs following his middleweight title fight against Anderson Silva, the UFC has more dirty urine on its hands. MMA Junkie broke the news yesterday that Octagon first-timer Vinicius Quieroz — who was submitted by Rob Broughton in his debut at UFC 120 in London — tested positive for the anabolic steroid Stanozolol after the match and has been fired by the UFC.
As they usually do for overseas events, the UFC conducted its own drug screening at #120, testing main event fighters Michael Bisping and Yoshihiro Akiyama, as well as six other fighters selected at random. Quieroz was the only fighter who tested positive. In addition to his release from the promotion, the 5-2 Chute Boxe product will forfeit an undisclosed discretionary bonus from the UFC; his test results will also be given to the Nevada State Athletic Commission, which could affect Quieroz’s ability to get licensed to fight in the U.S.