Even though he has officially retired from MMA competition, Chael Sonnen has now failed two consecutive drug tests in the span of five months.

During the airing of UFC Fight Night: Swanson vs. Stephens, MMAFighting.com's Ariel Helwani revealed that the former two-division title challenger failed a second drug test, also administered by the Nevada State Athletic Commission because, at the time, he was still scheduled to compete at UFC 175.

While neither Sonnen nor UFC President Dana White were present at the event, Dave Sholler offered a statement to the media present at the post-fight press conference, which quickly highlighted their stance on the matter.

"We are made aware that a second random test conducted earlier this month resulted in a positive test for additional banned substances," Sholler stated at the post-fight press conference. "Chael [Sonnen] will have an opportunity to appear in front of the Nevada State Athletic Commission later this month, and through a statement released to the media, he has pledged to cooperate.

"We will support the commission and continue to ensure that all UFC competitors complete on an even playing field free of performance enhancing drugs and banned substances."

Sonnen initially failed a random drug test in February for the Clomiphene and Anastrozole. When the results were released, Sonnen proclaimed that he required the banned substances to help kick start his natural testosterone production after going off Testosterone Replacement Therapy. This time around, he tested positive for Human Growth Hormone (HGH) and recombinant human erythropoietin (EPO). Both the drugs in question clearly fall under performance enhancing drugs.

Sonnen retired shortly after the initial drug test, as he doubted his ability to legally partake in combat sports without TRT.