UFC Fight Night 32 drug test results: Vitor Belfort knocked out Dan Henderson with low testosterone levels

UFC Fight Night 32 drug test results are in from the Brazilian Athletic Commission (CABMMA), which confirmed on Tuesday that all 22 of the mixed martial arts (MMA) fighters tested for illegal/banned substances have passed with flying colors.

Results from those battery of tests, which include performance enhancing drugs (PEDs) such as steroids and drugs of abuse like cocaine and marijuana, among others, all returned negative, according to MMA Weekly. In addition, headliners Vitor Belfort and Dan Henderson -- as well as four other undisclosed fighters -- were subjected to a battery tests following the event.

Belfort and Henderson each received a therapeutic use exemption for testosterone replacement therapy (TRT).

Even with his treatment, "The Phenom" still suffered from low testosterone levels prior to his first-round knockout win against "Hendo," which took place on Nov. 9, 2013 from Goiania Arena in Goiania, Brazil, according to a report from MMA Fighting.

"My (testosterone) levels were low in my last fight. I have all the exams to prove that I have a disease. It's simple."

See all the results and play-by-play from UFC Fight Night 32 here.

Belfort is expected to fight the winner of Chris Weidman vs. Anderson Silva, who battle it out for the middleweight title at UFC 168 next month in Las Vegas, Nevada. In doing so, the Brazilian is anticipating a return to "Sin City" (in spite of this) after competing on the International circuit for the past couple of years.

With or without TRT.