The plot thickens.

Pictures have emerged of Anderson Silva's clean drug test results taken just hours before UFC 183 against Nick Diaz, which seemingly contradict another test that says he tested positive for the steroid Drostanolone.

According to Jorge Correa of the Brazilian blog Na Grade do MMA, the former Middleweight champion submitted two urine samples on Jan. 31, 2015, two minutes apart. The first sample was submitted to Quest Diagnostics and the second to Sports Medicine Research & Testing Laboratory. The second test came back positive and was sent to the Nevada State Athletic Commission (NSAC).

But, here's where it gets really weird. The first sample was negative.

Here are the images (provided by Na Grade do MMA):

And the positive test result:

This test result completely contradicts the positive sample found by Sports Medicine Research & Testing Laboratory. As Correa writes on his blog (translated by the powers of the Google):

"I consulted the Nevada State Athletic Commission (NSAC) on the reasons why this test has been ignored in the process. The case's prosecutor, Christopher Eccles, explained that the negative results are no grounds for making a complaint, but those who give positive. That is, it is not required to include this examination in the records and chose not to do so. But why, then, this test never went public? Simple: because no one had ever asked. The commission is not required to disclose or warn that this result has to hand, or even that the examination was effect, if no request to have it displayed."

Yikes.

As Correa notes, it's unusual to do two exams in a short space of time and inconsistent with the policies of World Anti-Doping Agency (WADA). Although one could argue the NSAC wouldn't be obligated to use the data from Quest since it is not accredited by WADA, it happens to be the laboratory that did find the use of benzodiazepines (anti-anxiety medication) in a previous test.

Not to mention the detection of two anabolic substances -- drostanolone and androsterone -- in a Jan. 9, 2015, test considered "out of competition."

However, Silva's lawyers will no doubt use the inconsistencies between the lab results to maintain his innocence or ask for leniency. According to Combate.com, Silva has until an NSAC disciplinary hearing on Aug. 7, 2015, to submit a written defense.