Blockbuster Trades in Baseball - Sports Illustrated
Former Cubs, Red Sox pitcher Jon Lester announces retirement
Chicago Cubs signed Jon Lester with DVD showing team winning World Series - Sports Illustrated
Jon Lester - Wikipedia
Jon Lester retires
Former Red Sox ace Jon Lester, three-time World Series champ, retires after 16 seasons - The Boston Globe
Jon Lester retires after epic MLB career as Red Sox, Cubs ace - Sports Illustrated
Former Cubs, Red Sox pitcher Jon Lester announces retirement National News - Bally Sports
Classic MLB games to stream during coronavirus