“I'm not going to say any names but there are fighter who, when they were young, used to have a really good chin, but then as they get older they get brain damage, their chin gets weaker, and they get frequently dropped.”

South Korean former mixed martial artist

Jung Chan-sung, anglicized as Chan Sung Jung and known professionally as The Korean Zombie, is a South Korean former mixed martial artist. He is best known for competing in the featherweight division of the Ultimate Fighting Championship. His career is identified with the UFC, where he fought in one of the sport’s most visible divisions. The nickname The Korean Zombie became the name most people know him by, and it is the one that appears most often alongside his fighting record.