Fumiya Nishiguchi (西口 文也, Nishiguchi Fumiya), (born September 26, 1972) is a Japanese former professional baseball right-handed pitcher and current manager for the Saitama Seibu Lions of Nippon Professional Baseball (NPB). He played 21 seasons in NPB, all for the Lions.
Source: “Fumiya Nishiguchi”, English Wikipedia (CC BY-SA 4.0), excerpt