better known by his ring name Yamaguchi-san, was a professional wrestling manager and sports journalist. Yamaguchi was a former writer for Gong Magazine, and attained his greatest fame in the World Wrestling Federation (WWF), as the manager of Kai En Tai in 1998. A lifelong fan of professional wrestling, Yamaguchi's career began in the 1970s as a writer for Gong Magazine. In the 1980s, he began working for various Japanese promotions in both behind-the-scenes and in-ring positions such as referee, manager, and commentator. He founded Frontier Martial-Arts Wrestling with Atsushi Onita in 1989, Universal Lucha Libre with Gran Hamada in 1990, and Michinoku Pro Wrestling with The Great Sasuke in 1993.[citation needed] Because of his fluency in English, he was responsible for booking gaijin talent in Japan, as well as booking Japanese talent overseas. He would also accompany Japanese talent booked overseas to not only oversee the tour, but to assist them in making the travel easier and fun.