A few years ago there was a thread on here (I think it was before the combat forum actually existed) saying that MMA didn't have world class athletes - or more accurately some argued that the level of athletes was lower than more popular sports such as basketball or football. At the time I disagreed. My opinion was purely based on the fact that I believed that skill and technique trumped athleticism in a sport with so many areas in which to win or lose, and I really didn't think that there would be guys showing up with explosiveness, endurance, AND the ability to strike and grapple.
I gotta say that Jon Jones is proving me entirely wrong. I realize it's still early in his career and lots could happen in the interim, but based on the way he's improved so quickly in the sport, combined with the god given physical abilities he possesses, his example hints at the potential MMA athlete we are seeing and may see more of in the future. It is absolutely scary to think of what he could become with more work in the gym and what the future holds for MMA in general.