Longtime Red Sox ace Jon Lester retires after 16 MLB seasons
MLB news: Jon Lester announces retirement after 16-year career
MLB News: Jon Lester MLB: Pitcher announces retirement after 16
Jon Lester Retires After 16 MLB Seasons; Won 3 World Series with
Jon Lester - St. Louis Cardinals Starting Pitcher - ESPN
Jon Lester announces his retirement after long career with Boston
Longtime Red Sox ace Jon Lester retires after 16 MLB seasons
Bernie: As Jon Lester Retires, An Appreciation Of A Former Rival
Jon Lester announces retirement from MLB after 16 seasons