Frank Shamrock

Frank Shamrock is a retired MexicanAmerican mixed martial arts fighter. Shamrock was the first to hold the UFC Middleweight Championship and retired as the fourtime defending undefeated champion. Shamrock was the No.ranked pound for pound UFC fighter in the world during his reign as the UFC Middleweight Champion. Shamrock has won numerous titles in other martial arts organizations, including the interim King of Pancrase title, the WEC Light Heavyweight Championship and the Strikeforce Middleweight Championship.

NA

Source: Wikipedia