Sumo Video - How to beat a big guy

Ok, I said I wouldnt make a habit of posting Sumo videos... But here is another one, I am bored...

MMA has weight classes, and for good reason, in Sumo small guys will have to fight the big guys. So how can a small guy win against a bigger opponent? Here is one way, a brutal KO (for sumo). Kykudozan weighs in at about 100 kg (one of the lightest guys in top sumo ever), he is facing Kushimaumi who would weighed about 190 kg.