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

Steve Bartman, Leon Durham not only reasons Cubs have struggled in NLCS - Sports Illustrated

Jon Lester traded to Oakland Athletics, Yoenis Cespedes to Boston Red Sox - ESPN

Boston Red Sox pitchers Josh Beckett, Jon Lester look to mend fences

Jon Lester has announced his retirement - Bleed Cubbie Blue

Jon Lester retires

Jon Lester

Jon Lester, Former Red Sox Ace and World Series Champ, Retires From MLB – NBC Chicago

Former Cubs, Red Sox pitcher Jon Lester announces retirement

New York Yankees shortstop Derek Jeter on this week's Sports Illustrated cover - Sports Illustrated

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