He is a Filipino Boxing Manager in the Oriental and Pacific Boxing Federation. Mr. Sakaguchi is infamous for his impure motives and abandoning boxers who fail him. He has had a personal vendetta against Miyata Ichirō since he defeated his client Arnie Gregory to become the OPBF champion and is willing to do anything to end his career.
Mr. Sakaguchi
Mr.サカグチ
Hajime no Ippo: Fighting Spirit!



























