The two greatest champs Silva and bones have tested positive. I know what some will say about bones but he was definitely using. Wouldn’t be surprised if 30% of the ufc was on something. And way higher of a number before they got to the ufc and in usada testing.
Silva tested postive about breaking his leg because medication you take to recover from that type of injury contains steroids, I mean he's fought 9 people who tested positive on steriods
Jon Jones tested positive for cocaine, USADA did an investigation to show that the failed test came from a tainted supplement and was so small it couldn't have gave him any benefits
you can tell who is on steroids by their performance
Chris Weidman was clearly on roids, and when USADA came he no longer had the same pace he had before and has turned into a below average fighter for the most part
TJ being on EPO all this time, it makes sense because he was like Manny Pacquaio keeping up a high pace without losing energy, he only KO'd Cody because he was getting tired swinging for the fences and TJ wasn't, so when his punches got slower and his reaction time got slower TJ's stayed the same which is why he was able to catch him in the exchange
that Paula Costo or whatever his name is, shows clear sounds of steroid use you can't even have a physique like his unless you weigh 135 he's clearly on roids and never been caught, the real cheaters know how not to get caught
only reason TJ got caught is because USADA happened to test for EPO that time and normally don't, they can try his old sample but that window is probably close, because you have to test at the right time to catch it