Caceres tested positive for marijuana metabolites following his fight with Kyung Ho Kang. He received a six-month suspension retroactive to the date of the event, agreed to attend drug rehabilitation classes, and must pass a drug test upon completing his suspension before he can return to competition.
Caceres initially scored a split decision victory over Kang, but the result of that bout has been changed to a no contest.
Fukuda’s drug test results revealed the presence of Phenylpropanolamine, Norpseudoephedrine, and Ephedrine, which are stimulants and considered banned performance-enhancing substances.
Fukuda lost his bout against Brad Tavares at UFC on Fuel TV 8 and has an overall record of 2-3 in the Octagon, so the UFC released him from his contract following the failed drug test.
His test results will also be reported to the official Association of Boxing Commissions record-keeper.
All 22 fighters on the UFC on Fuel TV 8 fight card were drug tested, according to UFC officials. Caceres and Fukuda were the sole participants to return a positive result.
There is no athletic commission that oversees mixed martial arts events in Japan. The UFC hired an independent testing facility to administer the drug tests.