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Two cities, one legend: Jon Lester reflects on one of a kind career with Sox, Cubs, Sports
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Jon Lester, former Cubs, Red Sox pitcher, announces retirement
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MLB Rumors: Jon Lester has retired - Lone Star Ball
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How Theo Epstein built the Chicago Cubs into the best team in MLB - Sports Illustrated
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Jon Lester announces retirement after 16 seasons, three World Series titles - ESPN
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Two cities, one legend: Jon Lester reflects on one of a kind career with Sox, Cubs, Sports
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Former Cubs pitcher Jon Lester, part of team's World Series core, announces his retirement - Chicago Sun-Times
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Jon Lester, former Boston Red Sox pitcher, retires after 16-year MLB career (report)
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tanner roark at Nationals Arm Race
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Two cities, one legend: Jon Lester reflects on one of a kind career with Sox, Cubs, Sports
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Jon Lester retires after epic MLB career as Red Sox, Cubs ace - Sports Illustrated
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Former Cubs, Red Sox pitcher Jon Lester announces retirement
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Jon Lester - Wikipedia
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Jon Lester has announced his retirement - Bleed Cubbie Blue
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Jon Lester retires: Former Red Sox, Cubs ace concludes 16-year career - Sports Illustrated