Not only is this thread ridiculous but the people responding to it are even more so. Watch UFC 1-10. Most of these "grand-masters" are one dimensional martial artists who train in one style. It wouldn't be possible to combat a UFC fighter if you didn't have knowledge of a ground system of fighting, you'd get taken down and would give up your back quickly. You'd have to not only be a "grand master" which is pretty retarded anyways, because rank has no relevance to combat expertise ... rather it's simply knowledge. But on to my point, the only way for one martial art to work, is if you're well-versed in others so that you could enforce the fight stay within the realms of that martial art's strengths, ala Lyoto Machida. However, one could argue that very principle is utilizing MMA and therefore that one style shouldn't be credited, which I agree with.