Frank Shamrock announces his retirement once again from the sport of MMA at the Strikeforce: Fedor vs Werdum event. This following a loss to Nick Diaz in April of 2009. An emotional Frank Shamrock gives his final speech in front of the Strikeforce fans, expressing his pleasure of entertaining the fans.
Shamrock at the age of 37 finishes his career with a record of 23-10-2. Shamrock the first ever UFC middleweight champion. Wins over big names such as Tito Ortiz, Cesar Gracie, and Jeremy Horn.