Jon Lester retires: Five-time All-Star and three-time World Series
Jon Lester - Wikipedia
A look back at Jon Lester's career - Beyond the Box Score
MLB news: Jon Lester announces retirement after 16-year career
Red Sox, Cubs pitcher Jon Lester retires after 16 years, 3 World
With Jon Lester's retirement we ask: How do you define a Hall of
Jon Lester retires after epic MLB career as Red Sox, Cubs ace
Former Red Sox pitcher, World Series champion Jon Lester retiring
Washington National for a minute Jon Lester announces retirement