Chang Sung "The Korean Zombie" vs Yair Rodriguez went down this weekend for FREE on FS1 and what is going down in UFC History as one of the craziest KO's of all time. What a battle between these 2 fighters and Chang Sung was winning this fight in rounds but all you need is 1 second to knock someone out. The last 10 seconds in the 5th round Yair does this crazy elbow that hits Chang Sung right in the jaw and game over. This is good for Yair who had a little controversy about not wanting to fight. I hope there is a rematch and I bet this time UFC will charge you!