The twisting and turning of the Anderson Silva failed drug test saga continues.

Multiple sources close to the situation on Wednesday confirmed to MMAjunkie that Silva failed a second drug test in relation to UFC 183. The sources spoke on condition of anonymity because they were not authorized to speak publicly about the matter.

Last week, it was announced Silva (34-6 MMA, 17-2 UFC) tested positive for drostanolone metabolites and androstane ahead of his win over Nick Diaz (26-10 MMA, 7-7 UFC) in the UFC 183 main event. (Diaz, himself, tested positive for marijuana metabolites in a fight-night drug test.)

That test was administered on Jan. 9 and was considered an out-of-competition screening. The former middleweight champion, however, passed a Jan. 19 test for human growth-hormone, as well as performance-enhancing drugs.

The date of Silva’s second failed test is not yet known, and an open-records request made by MMAjunkie has not yet been answered by the state of Nevada.

Silva’s case will go before the Nevada State Athletic Commission during a Feb. 17 meeting. He will likely be temporarily suspended pending a formal hearing into the matter, which would take place at a subsequent meeting.

The fighter, who returned from a 13-month layoff (due to a broken leg) at UFC 183, faces a suspension, fines and the overturning of his decision win over Diaz at the Jan. 31 event. Diaz is scheduled for the same meeting of the NSAC, as are UFC fighters Hector Lombard and Ashlee Evans-Smith, who also recently failed drug tests for fights in Nevada.

Stay tuned to MMAjunkie for more on this story as it becomes available.

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For complete coverage of UFC 183, check out the UFC Events section of the site.