Brock Lesnar returned triumphant in the UFC 200. Yet the celebrations quickly turned to speculations when the US Anti-Doping Agency flagged him for possible violations. The B sample is yet to be tested for confirmation.
An anonymous teammate went on an Internet forum to shed light on the matter. He surmises that Advair, an asthma medication, might be the culprit for the positive test. According to him, Lesnar was diagnosed with Reactive Airway Disease which sometimes causes the fighter to have trouble breathing.
It should be noted that Lesnar was tested multiple times prior to the fight and came out clean in all of them.