http://www.sherdog.com/news/news/UF...ing-Positive-for-Banned-Anabolic-Agent-109645 “Consistent with numerous prior reported cases globally, the issue of illicit administration of clenbuterol to animals destined for food production can result in, under specific conditions, a positive sample from an athlete. WADA has issued specific warnings about this problem in China and Mexico,” the statement read.”To USADA’s knowledge, due to strict regulatory and meat certification practices, a clenbuterol positive athlete sample has never been reported after consumption of meat produced in the U.S. “USADA reviewed all of the evidence, including the athlete’s whereabouts, dietary habits, and the laboratory reports demonstrating very low parts per billion concentrations of the prohibited substance in the athlete’s urine sample, and concluded that the presence of clenbuterol in the athlete’s sample very likely resulted from clenbuterol contaminated meat consumed in China. As a result, Guangyou will not face a period of ineligibility for his positive test.” Another fighter cleared due to tainted consumption. How about that. Ning will be still fighting on August 20th against Marlon Vera at UFC 202. Oh, and to preemptively respond to your "who?" questions - his fight finder listing.