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Former Red Sox pitcher Jon Lester pops up at Fenway to catch up with some old friends - The Boston Globe
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Cardinals pitcher Jon Lester announces retirement
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Jon Lester, done after 16 seasons, gave the Red Sox everything he had — something today's starters aren't asked to do - The Boston Globe
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Jon Lester, former Boston Red Sox pitcher, retires after 16-year MLB career (report)
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Jon Lester, Major League Baseball, News, Scores, Highlights, Stats, and Rumors
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In an Era of Throwers, Adam Wainwright Is a Pitcher - The New York Times
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Former Cubs, Red Sox Pitcher Jon Lester Announces Retirement - Bloomberg
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Jon Lester, two-time champion with Red Sox, announces retirement
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Jon Lester retires after epic MLB career as Red Sox, Cubs ace - Sports Illustrated