Jon Lester retires after epic MLB career as Red Sox, Cubs ace - Sports Illustrated

RUN ITS COURSE': Ex-Red Sox, Cubs ace Jon Lester to retire

Reiter 50: Scherzer, Lester, Shields lead off-season's free-agent rankings - Sports Illustrated

Jon Lester Retires After 16 MLB Seasons; Won 3 World Series with Red Sox and Cubs, News, Scores, Highlights, Stats, and Rumors

Jon Lester - Wikipedia

Former Cubs, Red Sox pitcher Jon Lester retires with 200 wins, 3 World Series rings - The Athletic

Cubs win World Series Game 7, end 108-year drought – Daily Press

Jon Lester - Wikipedia

Former Cubs, Red Sox pitcher Jon Lester announces retirement National News - Bally Sports

Jon Lester Retires After 16 MLB Seasons; Won 3 World Series with Red Sox and Cubs, News, Scores, Highlights, Stats, and Rumors

Jon Lester, former Cubs, Red Sox pitcher, announces retirement

Longtime Red Sox and Cubs ace Jon Lester announces retirement

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