Jon Lester was an amazing person to have on the Chicago Cubs
Former Red Sox teammates Jon Lester and John Lackey put friendship on hold in MLB playoffs
Jon Lester Retires After 16 Seasons, Established Legendary Career Despite Hitting Just 4 Home Runs - Cubs Insider
Former St. Louis Cardinals pitcher Jon Lester decides to retire
Jon Lester out of the equation for Cubs' Opening-Day starter - Chicago Sun-Times
Jon Lester - Wikipedia
Longtime Red Sox ace Jon Lester retires after 16 MLB seasons, Red Sox
Jon_Lester
Three-Time World Series Champ Jon Lester Announces Retirement After 16 MLB Seasons - CBS Boston
Former Cubs, Red Sox pitcher Jon Lester announces retirement
Veteran Pitcher Lester Retires
Former Cubs Pitcher Jon Lester Announces Retirement - CBS Chicago
Ex-Red Sox Jon Lester Not Worried About Hall Of Fame Chances