This was taken from OneSongchai Tsunami Event. I've posted on both of these fighters before, so you should know they are among the top of the top. Khem however is obviously on the bigger side (I'm pretty sure his current fighting weight is about 15 pounds heavier than Saenchai's). This is a great fight, with a lot of good technical exchange.
Usually I'd rather let you draw your own conclusions, but one thing I think is interesting to consider: how Saenchai, as a smaller fighter, asserts himself as an equal if not dominant in the fight against a larger Khem (try thinking less about the fact that Saenchai is just a technical genius who can throw and move in a way most people can't, and look more at the overall choices he is making in the ring).