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With Jon Lester's retirement we ask: How do you define a Hall of Fame starting pitcher? - The Boston Globe
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Jon Lester's 16-Year Career Perfectly Blended Intensity And Winning With Leadership
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MLB News: Jon Lester MLB: Pitcher announces retirement after 16 seasons and 3 World Series titles
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Former Cubs, Red Sox pitcher Jon Lester announces retirement
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Jon Lester has announced his retirement - Bleed Cubbie Blue
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Jon Lester announces retirement after 16 seasons, three World Series titles - ESPN
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Lester pitches Cubs to sixth straight win
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Jon Lester announces retirement after 16 seasons, three World Series titles - ESPN
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Jon Lester just retired, and the KC Royals won't miss him
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Jon Lester announces retirement from MLB after 16 seasons
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Top 5 moments from Lester's career
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Jon Lester: News, Stats, Bio, & More - NBC Sports - NBC Sports
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Mastrodonato: Jon Lester retires a winner, but Red Sox still look like losers
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Jon Lester retires: Former Red Sox, Cubs ace concludes 16-year career - Sports Illustrated
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Cubs' Jon Lester goes for 13th straight 30-start season - Chicago Sun-Times