Jon Lester retires
Jon Lester, former New York Yankees nemesis, retires from baseball
Jon Lester retires: Former Red Sox, Cubs ace concludes 16-year career - Sports Illustrated
2016 World Series Hero Keeping Dream Alive In Minors
Former Oakland A's pitcher Jon Lester retires
Cubs' Jon Lester goes for 13th straight 30-start season - Chicago Sun-Times
Nationals, Cardinals Swap Jon Lester For Lane Thomas - MLB Trade Rumors
Longtime Red Sox and Cubs ace Jon Lester announces retirement
Jon Lester announces retirement from MLB after 16 seasons
Jon Lester retires after epic MLB career as Red Sox, Cubs ace - Sports Illustrated
Maybe the best playoff pitcher ever' - What made Jon Lester an October legend and potential Hall of Famer - ESPN
July 19, 2021: Jon Lester hits a high note, and a homer, as Nationals rout Marlins – Society for American Baseball Research
Jon Lester: Breaking News, Rumors & Highlights
Jon Lester: Former Chicago Cubs, Boston Red Sox ace retires
Former Cubs Pitcher Jon Lester Announces Retirement - CBS Chicago