Koshiro Yamamuro (山室公志郎, born July 14, 1987) is a

Japanese Japanese may refer to: * Something from or related to Japan, an island country in East Asia * Japanese language, spoken mainly in Japan * Japanese people, the ethnic group that identifies with Japan through ancestry or culture ** Japanese diaspor ...

former professional

baseball Baseball is a bat-and-ball sport played between two teams of nine players each, taking turns batting and fielding. The game occurs over the course of several plays, with each play generally beginning when a player on the fielding tea ...

pitcher In baseball, the pitcher is the player who throws ("pitches") the baseball from the pitcher's mound toward the catcher to begin each play, with the goal of retiring a batter, who attempts to either make contact with the pitched ball or draw ...

. He played with the

Chiba Lotte Marines The are a professional baseball team in Japan's Pacific League based in Chiba City, Chiba Prefecture, in the Kantō region, and owned by Lotte Holdings Co., Ltd. History The Marines franchise began in 1950 as the Mainichi Orions, an inaugural ...

Japan Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the north ...

Nippon Professional Baseball or NPB is the highest level of baseball in Japan. Locally, it is often called , meaning ''Professional Baseball''. Outside Japan, it is often just referred to as "Japanese baseball". The roots of the league can be traced back to the formation ...

in 2010.

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1987 births Living people People from Yokohama Aoyama Gakuin University alumni Japanese baseball players Nippon Professional Baseball pitchers Chiba Lotte Marines players {{Japan-baseball-pitcher-stub