The clenbuterol cases rage on.
UFC fighter Augusto Montano tested positive for the drug in an out-of-competition drug test May 19, but will not be sanctioned for the failure, USADA announced Wednesday. Montano was found to have no fault or negligence after an investigation by the UFC's anti-doping partner.
Montano hails from Mexico, one of the countries where meat is routinely contaminated with clenbuterol. China is the other. The World Anti-Doping Agency (WADA) issued a warning about the drug in those places in 2011.
USADA said in a release that it interviewed Montano on multiple occasions and took a look at his whereabouts and dietary habits.