Part 1 of 3: Yac and J Interview of Frank Shamrock.  Frank Shamrock (born December 8, 1972 in Santa Monica, California) is an American mixed martial arts fighter. Shamrock was the first to hold the UFC Middleweight championship (renamed the UFC Light Heavyweight championship) and retired as the five-time defending undefeated champion. Frank was also crowned an Interim King of Pancrase. He has also been the Strikeforce Middleweight champion. He has been named "Fighter of the Decade" for 1990’s by the Wrestling Observer, "Best Full Contact Fighter", by Black Belt magazine (1998), and three time "Fighter of the Year" by Full Contact Fighter Magazine. He is the adopted younger brother of mixed martial arts fighter and former professional wrestler Ken Shamrock.