Washington National for a minute Jon Lester announces retirement after 16-year career - Federal Baseball
Former Cubs, Red Sox pitcher Jon Lester announces retirement
Veteran Pitcher Lester Retires
Former Oakland A's pitcher Jon Lester retires
Maybe the best playoff pitcher ever' - What made Jon Lester an October legend and potential Hall of Famer - ESPN
Jon Lester was an amazing person to have on the Chicago Cubs
Jon Lester announces retirement after 16 seasons, three World Series titles - ESPN
Jon Lester announces his retirement after long career with Boston Red Sox and Chicago Cubs - Over the Monster
Jon Lester, done after 16 seasons, gave the Red Sox everything he had — something today's starters aren't asked to do - The Boston Globe