Japan's Kazuto Ioka knocked out Venezuela's Josber Perez on Sunday in the seventh round of his first WBA super flyweight title defense.The victory at Ota City General Gymnasium marked Ioka's 22nd victory in a world title fight, the most by a Japanese boxer.Perez came out punching hard and connected often enough to put Ioka on the defensive in the first two rounds."Right from the start Perez landed some good punches, and it was a tough way to start the fight, but I was resolved to show everyone I could battle to the end," Ioka said after his first knockout in three years.From the third round…READ FULL ARTICLE