Frank Shamrock is a retired Mexican-American mixed martial arts fighter. Shamrock was the first to hold the UFC Middleweight Championship and retired as the 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. 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. He was named "Fighter of the Decade" for the 1990s by the Wrestling Observer, "Best Full Contact Fighter" by Black Belt magazine, and three time "Fighter of the Year" by Full Contact Fighter Magazine. He is a Seventh degree black belt in submission fighting, awarded by O-Sensei Philip S. Porter of the United States Martial Arts Association. He is the adopted brother of UFC Hall of Famer Ken Shamrock. He holds the Guinness World Records for Fastest UFC Title Fight Victory by Submission in 16 seconds over Kevin Jackson at UFC Japan in Yokohama, Japan. 

December 8th, 1972 in Santa Monica (Age 51) as Frank Alisio Juarez, III