Japan's Kosei Tanaka defended his World Boxing Organization flyweight title Saturday with a victory over compatriot Ryoichi Taguchi by unanimous decision.All three judges scored the fight for Tanaka following a fierce 12-round battle at Gifu Memorial Center.The 23-year-old from Gifu Prefecture in central Japan took control after the opening rounds, using his exceptional speed to wear his opponent down. With the win, he improved to 13-0 with seven knockouts.Tanaka, who is trained by his father, said he still saw room for improvement despite winning in convincing fashion."I'm glad I was final…READ FULL ARTICLE