A UFC fighter has failed a drug test, but will not be suspended.
Ning Guangyou of China tested positive for clenbuterol from an out-of-competition sample taken May 19, but USADA found he ingested the substance without fault or negligence, it was announced Tuesday in a release.
Countries like Mexico and China have a high risk for meats contaminated with the substance. WADA issued a warning about the issue in 2011.
"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," the USADA release stated.