Former All-Star pitcher Jon Lester announces retirement after 16 MLB seasons
Former Oakland A's pitcher Jon Lester retires
July 19, 2021: Jon Lester hits a high note, and a homer, as Nationals rout Marlins – Society for American Baseball Research
Jon Lester retires after epic MLB career as Red Sox, Cubs ace - Sports Illustrated
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Cards pitcher Jon Lester announces retirement
Jon Lester talks about life after retirement from baseball
Former Cubs, Red Sox pitcher Jon Lester announces retirement
Jon Lester announces retirement from MLB after 16 seasons
Jon Lester, former Cubs, Red Sox pitcher, announces retirement
Jon Lester announces retirement, St. Louis Cardinals lose potential pitching depth
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