Jon Lester retires after epic MLB career as Red Sox, Cubs ace - Sports Illustrated
Jon Lester, former Cubs, Red Sox pitcher, announces retirement
Jon Lester retires
Jon Lester, Former Red Sox Ace and World Series Champ, Retires From MLB – NBC Chicago
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Jon Lester Retires After 16 MLB Seasons; Won 3 World Series with Red Sox and Cubs, News, Scores, Highlights, Stats, and Rumors
Jon Lester talks about life after retirement from baseball
