Jon Lester - Wikipedia
Jon Lester announces his retirement after long career with Boston Red Sox and Chicago Cubs - Over the Monster
Jon Lester hits free agency after Cubs decline option; is a Boston Red Sox reunion possible?
Jon Lester: Cubs veteran has no hard feelings towards Red Sox
B/R Walkoff - Jon Lester has announced his retirement. 3-time World Series champion 5-time All-Star 16 seasons 200 wins What a career 👏
July 19, 2021: Jon Lester hits a high note, and a homer, as Nationals rout Marlins – Society for American Baseball Research
Jon Lester, former Cubs ace and World Series champ, retires from MLB – NBC Sports Chicago
Is Jon Lester a Hall of Famer? John Lackey has a strong take – NBC Sports Boston
Jon Lester, two-time champion with Red Sox, announces retirement
Jon Lester retires after epic MLB career as Red Sox, Cubs ace - Sports Illustrated
Former Cubs Pitcher Jon Lester Announces Retirement - CBS Chicago
Former Cubs, Red Sox pitcher Jon Lester announces retirement
It's quite amazing how Jon Lester pitches in Game 4 of the 2007 World Series after undergoing chemotherapy less than a year prior. : r/redsox