Former Cubs pitcher Jon Lester retires after 16 seasons

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

Why former Red Sox ace Jon Lester should be a Hall of Famer

Red Sox, Cubs pitcher Jon Lester retires after 16 years, 3 World Series titles

Maybe the best playoff pitcher ever' - What made Jon Lester an October legend and potential Hall of Famer - ESPN

Jon Lester: News, Stats, Bio, & More - NBC Sports - NBC Sports

Former Oakland A's pitcher Jon Lester retires

Jon Lester discusses free-agent process and possibility of retirement after 2021 MLB season

Former Cubs, Red Sox pitcher Jon Lester announces retirement

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 👏

Jon Lester retires after epic MLB career as Red Sox, Cubs ace - Sports Illustrated