Hook knee attacks in a Muay Thai Clinch strike the ribs or the kidneys. Learn how to do a hook knee attack in aMuay Thai Clinch in this free martial arts training video on Muay Thai techniques. Expert: Ed Wedding Bio: Ed Wedding is an instructor at R-1 gym in El Segundo, California and is well versed in boxing, Thai-boxing, Filipino stickfighting, Wing Chun Kung Fu, Brazilian Jujitsu, and wrestling. Filmmaker: Nili Nathan