As a long time fma practitioner and long time mma fan, I've seen many fma-style movements become adopted by mma fighters. Dirty boxing? There wasn't much of it in early UFCs, but now it's quite common. Randy Couture obviously took this style of fighting to new heights in the ring, and although he may not be trained in FMA, it is an approach that most FMA stylists are very familiar with and utilize. Close range hooks, bolo punches, and uppercuts out of the clinch are hallmarks of Filipino boxing. Same for the conscious and tactical use of short elbows. Early on, only big Muay-Thai style swinging elbows were prevalent. Very few people used elbows out of the clinch or from a variety of angles while on the ground. It was either a big, commited horizontal elbow while standing, or a downward elbow spike on the ground. Nowdays, short chopping elbows to the ribs are common while grappling, whereas a few years back this was almost never seen. Is it FMA influence on a few fighters letting these tactics seep into the octagon? Or is it just that they are combatively valid, and mma fighters are just figuring out these tricks that most FMA stylists take for granted? Who knows, but they look like FMA tactics to me.