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Blockbuster Trades in Baseball - Sports Illustrated
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A look back at Jon Lester's career - Beyond the Box Score
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Jon Lester announces retirement after 16 seasons, three World Series titles - ESPN
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Reiter 50: Scherzer, Lester, Shields lead off-season's free-agent rankings - Sports Illustrated
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Jon Lester retires: Former Red Sox, Cubs ace concludes 16-year career - Sports Illustrated
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Chicago Cubs: Inside story of their World Series triumph - Sports Illustrated Vault
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Former Cubs, Red Sox pitcher Jon Lester announces retirement
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Jon Lester retires
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Longtime Red Sox ace Jon Lester retires after 16 MLB seasons