Jon Lester announces retirement after 16 seasons, three World Series titles - ESPN
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Jon Lester has announced his retirement - Bleed Cubbie Blue
Jon Lester Retires After 16 MLB Seasons; Won 3 World Series with
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Former Cardinals pitcher Jon Lester announces retirement
Jon Lester announces his retirement after long career with Boston
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MLB news: Jon Lester announces retirement after 16-year career