Jones, 31, has maintained his innocence in the matter, and says he won't let it distract him from his first appearance in 18 months.
Jones has previously failed (and served suspensions for) two drug tests, which has cast a shadow over one of the greatest resumes in the sport's history. In both cases however -- 2016 and 2017 -- USADA ultimately ruled Jones' positive tests were not the result of intentional doping.
USADA and CSAC ruled this latest result was likely caused by a long-lasting metabolite of the same substance Jones tested positive for last year and has provided no performance-enhancing benefit.
The state of Nevada, where this weekend's fight was supposed to be held, couldn't clear Jones in time for UFC 232, so the UFC moved the event California.
Jones acknowledged this week has "been a nightmare" following the announcement of that atypical test, but said he feels personally comfortable with the result.
One thing Jones said he has felt genuinely bad about, however, is the need to relocate the event. Jones was in Las Vegas on Wednesday, and said he spent the day apologizing to other fighters on the UFC 232 card who were affected.
He also announced on Instagram a last-minute autograph signing at his hotel for any fans who traveled to Las Vegas to see the fight. Afterward, he posted a thanks to those who attended.
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