As previously reported, Brock Lesnar was recently flagged by USADA for a possible anti-doping violation following his UFC 200 fight against Mark Hunt.

It is currently unknown what may have triggered Lesnar's recent test to become positive; however, according to one of Lesnar's training teammates, who identified himself only as "D2" in an online forum, the culprit is a simple asthma inhaler that Lesnar must take at certain times during the year.

Below are the comments that were offered by "D2":

"Brock suffers from what's called RAD, otherwise known as reactive airway disease. His doctor for years has prescribed him Advair Diskus (an inhaler), which helps him breathe during the late spring and summer months here in Minnesota when he has episodes. This drug is classified as Beta-2 Agonists. So this is why he got popped by USADA. It's really just a formality though, because he should of been given a TUE just like people do who have ADHD and take Adderall that fight in the UFC, or other pain killers for injuries. He passed the other 7 tests and was not using any GH or Anabolic agents of any kind which everyone is assuming."