Since knocking out Dan Henderson in Nov. 2015, Vitor Belfort hasn’t had the best of times inside the Ultimate Fighting Championship (UFC) Octagon, suffering back-to-back beat downs at the hands of Ronaldo Souza and, more recently, to Gegard Mousasi. Many have attributed his decline to the crackdown on testosterone replacement therapy (TRT), especially in the physique department (see for yourself here).
Mousasi, however, says TRT may have also affected Belfort’s mental health, too, telling Daily Star Sport that -- because of the lack of the extra testosterone -- "The Phenom" is no longer as confident as he once was.