Jon Lester announces retirement, St. Louis Cardinals lose
Former Oakland A's pitcher Jon Lester retires
Former All-Star pitcher Jon Lester announces retirement after 16
Former Cubs, Red Sox pitcher Jon Lester announces retirement - NBC
Two cities, one legend: Jon Lester reflects on one of a kind
Former Cubs, Red Sox pitcher Jon Lester announces retirement
Jon Lester's 16-Year Career Perfectly Blended Intensity And
Red Sox' Pitching Change Is Paying Off - The New York Times
Jon Lester - Wikipedia
Longtime Red Sox ace Jon Lester retires after 16 MLB seasons