A. J. Pierzynski - Wikipedia
Jon Lester retires
Jon Lester retires
Jon Lester retires after epic MLB career as Red Sox, Cubs ace - Sports Illustrated
A look back at Jon Lester's career - Beyond the Box Score
MLB News: Jon Lester MLB: Pitcher announces retirement after 16 seasons and 3 World Series titles
Former St. Louis Cardinals pitcher Jon Lester decides to retire
Longtime Red Sox and Cubs ace Jon Lester announces retirement
Trading Yoenis Cespedes for Jon Lester has saved the Athletics' season - Athletics Nation
Jon Lester talks about life after retirement from baseball
Jon Lester announces retirement after finishing career with Cardinals Midwest News - Bally Sports