Zinoviev Letter said:
A Fox Sports journalist ended up resigning after they too down on his column on the Lesnar issue, focusing on the fact that Lesnar had failed a test 11 days before the fight but was still allowed to fight. The resignation was about Fox Sports censoring articles that they thought might offend their commercial partner, UFC, rather than about the particular issues covered in the article. But I'm a bit confused about the article's complaint - just how fast do USADA go from collecting a sample to announcing a positive in UFC normally? 11 days seems like a very short time span for anything much to happen to a fan of most other sports.
I don't know but probably more to do with the safety aspect when it comes to UFC.
If you know a figher is doping and could be on the juice then you owe a duty of care to the guy he or she is fighting to get the fight halted if at all possible until it is dealt with.
Don't forget the WWE are getting sued for the physical damage their fighters have gone through over the years and their insistence on not having them as employees and from my recollection the fighters on the UFC roster are not independent contractors but UFC paid fighters for the most part.