When people try and say that performance-enhancing drugs only make a minor difference in fighting, the case of Vitor Belfort blows the argument out of the window.
Sure, all of the PEDs in the world can't overcome a lack of fighting skill, stamina, training, and toughness. But take a gifted fighter with tons of experience who is aging, and the difference is more than significant.
Belfort, whose career is likely coming to an end later this year, will be used as the prime example for decades to come of the TRT era of the sport.