Jon Lester talks about life after retirement from baseball
Jon Lester announces retirement after 16 seasons, three World Series titles - ESPN
Jon Lester talks about life after retirement from baseball
Jon Lester announces retirement, St. Louis Cardinals lose potential pitching depth
What if A's hadn't traded Yoenis Cespedes for Jon Lester back in 2014? – NBC Sports Bay Area & California
Former Cubs, Red Sox pitcher Jon Lester announces retirement
Cubs legend Jon Lester on his retirement and career in Chicago
Jon Lester announces retirement after finishing career with Cardinals Midwest News - Bally Sports
Jon Lester retires after epic MLB career as Red Sox, Cubs ace - Sports Illustrated