UFC featherweight champion Conor McGregor was not using a "substance" at UFC 196, just like lightweight standout Nate Diaz was not smoking weed from his personalized bong.
In fact, all fighters drug tested ahead of the "McGregor vs. Diaz" pay-per-view (PPV) event earlier this month in Las Vegas, Nevada -- including co-headliners Holly Holm and Miesha Tate -- returned negative results following their mixed martial arts (MMA) contests in "Sin City."
That's according to the tag team of Nevada Athletic Commission (NAC) and United States Anti-Doping Agency (USADA). The former drug tested 18 combatants from UFC 196, while the latter targeted the remaining six, including the main and co-main event fighters.
MMA Fighting brought word of the results on Monday.
UFC 196 featured a night of upsets, as Diaz strangled McGregor into submission, not long after Tate choked out Holm to capture the women's bantamweight crown.
For complete UFC 196 results and fallout click here.