33 and not on the juice and fighting for over 10 years wears on you if you age "normally". What we have grown accustomed to seeing is our typical "juiced" athlete, being competitive until the mid to late 30's. His decline from 30 years of age is a sign that he was not a PED user, whereas you KNOW most of our Heavyweights are or were. Before Dos Santos was pulled, the top 4 current HW's were 50/50 as busted users with Werdum having been "accused" and supportive of users saying that "the testing is too much". Physically, there is also a noticeable difference in his physique pre/post USADA. So now you have a potential 3 out of 4, with Stipe being the lone clean one and how old was he when he was knocked cold by one of Struve's punches? If you don't know the difference between 23 and 33, then I would say you don't know much at all.