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

Jon Lester announces retirement after 16 seasons, three World Series titles - ESPN

Former Cubs, Red Sox pitcher Jon Lester announces retirement

Jon Lester's retirement reminds us Red Sox never should have let him go

Mike Fiers pitches no-hitter: Astros righty shuts down Dodgers - Sports Illustrated

How Theo Epstein built the Chicago Cubs into the best team in MLB - Sports Illustrated

Jon Lester Retires After 16 MLB Seasons; Won 3 World Series with Red Sox and Cubs, News, Scores, Highlights, Stats, and Rumors

Former Red Sox ace Jon Lester, three-time World Series champ, retires after 16 seasons - The Boston Globe

Jon Lester, former Boston Red Sox pitcher, retires after 16-year MLB career (report)

Jon Lester beat the yips with focus and determination - Sports Illustrated

2015 NL Central Preview: The Cardinals Don't Care About Your Cubs Obsession

Cubs win World Series Game 7, end 108-year drought – Daily Press

Former Cubs pitcher Jon Lester, part of team's World Series core, announces his retirement - Chicago Sun-Times