Japan's Kosei Tanaka successfully defended his WBO flyweight title for the second time after defeating Puerto Rico's Jonathan Gonzalez by technical knockout in Nagoya on Saturday.Tanaka downed the Puerto Rican southpaw with punishing body blows in the third and fourth rounds at Takeda Teva Ocean Arena before the referee stopped the match shortly before the bell in the seventh."I was thinking that my strategy would be to make it a contest of speed, but I wasn't able to," Tanaka said. "Still, I think I have the ability to win like that."Tanaka's father, who is also his trainer, said, "I gave …READ FULL ARTICLE