Jon Jones Couched in the paperwork that UFC light heavyweight champ Jon Jones tested positive for cocaine metabolites prior to his UFC 182 fight with Daniel Cormier is a figure that concerns an anti-doping expert and endocrinologist consulted by MMAjunkie. Jones, who is now in rehab, thrice had his testosterone-to-epitestosterone ratio measured as part of an out-of-competition drug test ordered by the Nevada State Athletic Commission, which oversaw UFC 182.
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Anti-doping expert: With ‘odd’ testosterone readings, CIR test needed on Jones’ sample – MMA Junkie