Do you still follow MMA since USADA was implemented?
Vitor Belfort has about 4 forms: his original early UFC form (the blitz-you-down with straight punches one), his 2nd form, and then there was TRT-tor. He's the one that spinning-head kicked Michael Bisping's eyeball out. TRT-tor is the one who was kicking everyone in the head, and nearly broke Jon Jones' arm.
And then USADA came along, making doping much, much more difficult. It vastly limited what the athletes could use and not be caught. This led to Vitor's 4th form: post-USADA Vitor, aka "Dad-bod Vitor".
I follow it but not as much as I used to and I am aware of USADA, but you still have folks who were highly sophisticated in their drug use such as GSP that were never caught and knew how to game the system.
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