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Nevada Athletic Commission: All of Jon Jones' post-UFC 182 drug tests come back clean

Esther Lin, MMA Fighting

Jon Jones is in the clear with regards to UFC 182.

All of the UFC light heavyweight champion's drug tests have come back clean, Nevada Athletic Commission (NAC) executive director Bob Bennett told on Tuesday.

Jones' post-fight carbon isotope ratio (CIR) test reportedly returned clean last week. And Jones was found to be clean of street drugs in a separate test taken after UFC 182 on Jan. 3, too. Those results came back this week. Bennett said he would have the official documents out to the media within the next 48 hours.

Jones, 27, tested positive for cocaine metabolites in a Dec. 4 test. But since that test was taken out of competition (outside of a 12-hour window before and after the fight), Jones faced no punitive action from the NAC. He was tested two weeks after that and came up clean. Those samples featured irregular testosterone levels, but a CIR test on both turned up that Jones had not taken synthetic testosterone.

When the positive test came out two weeks ago, Jones announced that he would be checking himself into a drug-treatment facility. He told FOX Sports 1 in an interview Monday night that he spent only one night there when doctors determined that he would be better served with an outpatient program. Jones said he is being tested at least once a week now as part of that process.

"I did it, basically at a party," Jones said in the sitdown interview. "I think a coward would sit here and try to come up with this elaborate reason or to try to blame something, and I'm not going to do that. I'm not going to blame friends or blame pressure or stress. I'm not going to blame anything. But what I will say is that, I messed up. It wasn't a mistake. I can't call it a mistake necessarily, because I consciously did it."

Jones also said in that interview that he knew he'd fail the Dec. 4 test and wasn't sure until weigh-ins that he would be allowed to fight. Jones retained his title against Daniel Cormier at UFC 182.

All of Cormier's tests also came back negative, per Bennett.

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