Former Cubs, Red Sox pitcher Jon Lester announces retirement
Former Cubs, Red Sox pitcher Jon Lester announces retirement National News - Bally Sports
Jon Lester buys into dream of helping Cubs end World Series drought - Sports Illustrated
Jon Lester retires
Jon Lester retires
Jon Lester, Former Red Sox Ace and World Series Champ, Retires From MLB – NBC Chicago
Former Cubs pitcher Jon Lester, part of team's World Series core, announces his retirement - Chicago Sun-Times
MLB power rankings: Phillies surging, Red Sox falling - Sports Illustrated
Jon Lester beat the yips with focus and determination - Sports Illustrated
Jon Lester beat the yips with focus and determination - Sports Illustrated
Jon Lester retires: Five-time All-Star and three-time World Series champion calls it a career after 16 seasons