Jon Lester, former Cubs, Red Sox pitcher, announces retirement
Boston Red Sox: 16 Most Clutch Pitchers in Franchise History
Jon Lester Retires After 16 MLB Seasons; Won 3 World Series with
Cliff Lee - Wikipedia
Jon Lester retires after epic MLB career as Red Sox, Cubs ace
Former Cubs pitcher Jon Lester retires after 16 seasons
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2014 Sports Illustrated Covers - Sports Illustrated
Jon Lester, former Boston Red Sox pitcher, retires after 16-year
RUN ITS COURSE': Ex-Red Sox, Cubs ace Jon Lester to retire
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Boston Red Sox: 16 Most Clutch Pitchers in Franchise History
Longtime Red Sox and Cubs ace Jon Lester announces retirement