Jon Lester traded to Oakland Athletics, Yoenis Cespedes to Boston Red Sox - ESPN
Jon Lester - St. Louis Cardinals Starting Pitcher - ESPN
Nationals, Jon Lester In Talks - MLB Trade Rumors
Former Cardinals pitcher Jon Lester announces retirement
Jon Lester posts first career hit in 67 ABs with liner off John Lac.. - ABC13 Houston
Jon Lester to make Washington Nationals debut vs. Miami Marlins - ESPN
Chicago Cubs Game 1 rewind: Jon Lester, offense less than perfect - ESPN - Chicago Cubs Blog- ESPN
Former Cubs, Red Sox pitcher Jon Lester announces retirement
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Washington National for a minute Jon Lester announces retirement after 16-year career - Federal Baseball