Japan's Kazuto Ioka lost to Argentina's Fernando Martinez by unanimous decision in their world super flyweight unification bout on Sunday.In the second defense of his WBA title, the 35-year-old Ioka was second-best for much of the encounter against the aggressive IBF champion at Tokyo's Ryogoku Kokugikan.Ioka and Naoya Inoue are the only Japanese boxers to claim world titles in four weight divisions. The pair shares the record for the most world title bout wins by a Japanese boxer with 22.Ioka's loss was the third of his professional career, in which he has won 31, 16 by knockout, and one d…READ FULL ARTICLE