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Jon Lester announces his retirement after long career with Boston
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Jon Lester announces retirement after finishing career with
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Former Cubs pitcher Jon Lester announces his retirement
![Former Cubs, Red Sox pitcher Jon Lester announces retirement](https://www.bostonherald.com/wp-content/uploads/migration/2017/04/28/042817soxsc006.jpg?w=978)
Mastrodonato: Jon Lester retires a winner, but Red Sox still look like
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Former Oakland A's pitcher Jon Lester retires
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Former Red Sox ace Jon Lester, three-time World Series champ
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Former Red Sox great Jon Lester is calling it a career
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RUN ITS COURSE': Ex-Red Sox, Cubs ace Jon Lester to retire
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Gregor: Lester, a standout Cubs starter for 6 seasons, calls it a