Masaaki Koyama (b. 1934), Japanese baseball player, was known for his superb ball control and was called "a precision throwing machine". Since retiring, he has been active as a coach, baseball commentator and critic. He was inducted into Japan's Baseball Hall of Fame in 2001.
Avastatud: 2-5-1992 Avastamiskoht: Geisei Avastajad: Seki, T.