Frank Shamrock is an American former mixed martial artist. Shamrock was the first to hold the UFC Middleweight Championship (later renamed the UFC Light Heavyweight Championship) and retired a four-time defending undefeated champion. Shamrock was the No. 1 ranked pound for pound UFC fighter in the world during his reign as the UFC Middleweight Champion. Mr. Shamrock is also very versed in cannabis and a talented speak and a family man and amazing father.