tanner roark at Nationals Arm Race
Jon Lester retires: Five-time All-Star and three-time World Series
Former Red Sox ace Jon Lester, three-time World Series champ
Longtime Red Sox ace Jon Lester retires after 16 MLB seasons
Jon Lester traded to Oakland Athletics, Yoenis Cespedes to Boston
Former Cubs, Red Sox pitcher Jon Lester announces retirement
Blockbuster Trades in Baseball - Sports Illustrated
Red Sox, Cubs pitcher Jon Lester retires after 16 years, 3 World
John Lackey's revival mirrors that of the Red Sox
Jon Lester Retires After 16 MLB Seasons; Won 3 World Series with
Chicago Cubs Legend Helped Ace Surge to Cy Young Contention