Jon Lester hits free agency after Cubs decline option; is a Boston Red Sox reunion possible?
Former Cubs, Red Sox pitcher Jon Lester announces retirement
Jon Lester announces retirement, St. Louis Cardinals lose potential pitching depth
Former Oakland A's pitcher Jon Lester retires
Jon Lester retires after epic MLB career as Red Sox, Cubs ace - Sports Illustrated
Jon Lester - Wikipedia
Jon Lester, Cubs keep World Series dream alive with Game 5 win – Boston Herald
Longtime Red Sox ace Jon Lester retires after 16 MLB seasons, Red Sox
Washington National for a minute Jon Lester announces retirement after 16-year career - Federal Baseball
Former Cardinal Jon Lester Retires
Is Jon Lester a Hall of Famer? - Last Word On Baseball
Former Cubs, Red Sox pitcher Jon Lester announces retirement - NBC Sports
Boston Red Sox: The remarkable consistency of Jon Lester
Cubs' Jon Lester goes for 13th straight 30-start season - Chicago Sun-Times
Jon Lester: Breaking News, Rumors & Highlights