Brock Lesnar has been temporarily suspended pending a full hearing after he failed two drug tests surrounding his return to action at UFC 200 in July.
The Nevada State Athletic Commission revealed during a hearing on Tuesday that Lesnar tested positive for clomiphene and hydroxy-clomiphene, which is a metabolite of chomiphene. Clomiphene is an anti-estrogen agent that is typically used after a cycle of steroids to prevent many of the side effects that come along with the performance-enhancing drug.
Lesnar failed two drug tests - one from a pre-fight out of competition sample on June 28 and another from the night of his fight with Mark Hunt on July 9.
Lesnar won the fight by unanimous decision, but the state of Nevada has the right to overturn the result depending on the outcome of his hearing, which will be scheduled at a later date.
Lesnar faces potential sanctions from both Nevada and USADA (United States Anti-Doping Agency), who oversees the UFC's drug testing program. Lesnar's attorney Brian Stegeman has been contacted and will work with Nevada to set a date for the hearing where they will be able to present his defense in the matter.