Former Red Sox pitcher, World Series champion Jon Lester retiring, report says
Washington National for a minute Jon Lester announces retirement after 16-year career - Federal Baseball
Longtime Red Sox ace Jon Lester retires after 16 MLB seasons
Jon Lester retires after epic MLB career as Red Sox, Cubs ace - Sports Illustrated
Jon Lester has announced his retirement - Bleed Cubbie Blue
MLB veteran pitcher Jon Lester retires after 16 seasons
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Jon Lester Looks Back on His Career - The Ringer
Jon Lester, former Boston Red Sox pitcher, retires after 16-year MLB career (report)
Jon Lester retires: Five-time All-Star and three-time World Series champion calls it a career after 16 seasons
Former Cubs, Red Sox pitcher Jon Lester announces retirement
Longtime Red Sox ace Jon Lester retires after 16 MLB seasons, Red Sox
Cardinals get veteran lefty Jon Lester from rebuilding Nats, Sports