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

Jon Lester retires: Five-time All-Star and three-time World Series champion calls it a career after 16 seasons

Former Red Sox pitcher, World Series champion Jon Lester retiring, report says

Former Cubs, Red Sox pitcher Jon Lester announces retirement

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

Jon Lester retires

Jon Lester: Cubs veteran has no hard feelings towards Red Sox

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

Sources: Cubs land Jon Lester with $155 million deal

Why Jon Lester reached out about Justin Steele before he became the Cubs' new ace - The Athletic