Yamanaka, Hasegawa before world title double-header

TOKYO, Japan - Japan's Shinsuke Yamanaka (R), the WBC bantamweight champion, and Hozumi Hasegawa, a former world champion in two different weight classes, pose during a press conference on Feb. 11, 2014, in Tokyo, announcing they will each fight in a world title double-header on April 23 in Osaka. Yamanaka will try to defend his title against Stephane Jamoye of Belgium and Hasegawa will fight Kikoo Martinez, the IBF super bantamweight champion, of Spain.