6. Stephen Thompson
Evidently USADA testers want to make sure that Stephen “Wonderboy” Thompson doesn’t win the welterweight championship with the aid of any “Russian supplements”. They have tested Wonderboy 10x in 2016, tying him for 4th in the company.
It is unlikely Wonderboy will ever test positive for anything, he seems about as straight-laced as they come. Generally however, USADA tends to test the more successful fighters, and hardly any fighter is more successful than Thompson these days.
Wonderboy has competed in 34 career bouts (split between MMA and kickboxing) and has only ever lost once. Matt Brown is the lone person to defeat Wonderboy, having won a unanimous decision at UFC 145.
