This was Father and Son Greg and Gunnar Nelson. Gunnar demos his unbelievable knee skills at such an early age this is 2005. Boy how time flies.#mma #ufc #boxing #bjj #muaythai #kickboxing #jiujitsu #fitness #martialarts #wrestling #fight #grappling #training #karate #mmafighter #fighter #gym #mixedmartialarts #judo #sport #workout #brazilianjiujitsu #motivation #conormcgregor #selfdefense #bellator #mmatraining #taekwondo #bjjlifestyle #nogi