LAS VEGAS -- The Nevada Athletic Commission (NAC) banned fighters from using testosterone replacement therapy (TRT) last year. However, they can't ban it for coaches.
Matt Serra has been on TRT for a little while now, and he is bullish about its results.
"I think it's a big deal, man," Serra told MMAFighting.com. "I think it makes a difference. I feel powerful, man. I'm ripping kimuras. I feel good. I never competed on it besides rolling with my guys and stuff like that. But it does make a difference."
That's why Serra, 40, thinks there is little doubt that TRT helped Vitor Belfort significantly in the past.