Daisuke Matsuzaka to retire after 2021 NPB season

Japanese professional baseball pitcher Daisuke Matsuzaka of Saitama Seibu Lions takes part in a retirement official match against Hokkaido Nippon-Ham Fighters as a starter at MetLife Dome (Seibu Dome) in Tokorozawa City

Ex-major leaguer Matsuzaka walks away from baseball with love for game

Tag - The Japan Times

Daisuke Matsuzaka to retire after 2021 NPB season

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Pitching count record of Koshien pitchers. On this list,only Daisuke Matsuzaka has went to MLB. : r/baseball