Career
Background
Shirai comes from a judo background and holds a black belt in the discipline. Early career
Shirai made his debut in mixed martial arts on September 15, 2003. He also took part in the DREAM Welterweight Grand Prix 2009, losing to Jason High by rear naked-choke in the first round.
He then beat Che Mills at Hidehiko Yoshida"s farewall event ASTRA. On February 26, 2011, he faced Paul Daley at BAMMA 5: Daley versus
Shirai in Manchester, England. Shirai lost the fight via KO in the first round.
lieutenant was announced on 14 June 2011 that he would be facing Murilo Bustamante at a Clube da Luta event in Rio de Janeiro, Brazil on the 20th July. However Bustamante later pulled out of the bout due to injury and was replaced by Delson Heleno in what will now be a 180-pound catchweight contest.
He will face Tommy Depret at Glory 2: Brussels on October 6, 2012 in Brussels, Belgium.
DEEP Welterweight Championship (One time).