Cubs legend Jon Lester on his retirement and career in Chicago
Former Cubs pitcher Jon Lester retires after 16 seasons
Jon Lester announces retirement after 16 seasons, three World Series titles - ESPN
Should the Cubs retire Jon Lester's number? - Bleed Cubbie Blue
Jon Lester was an amazing person to have on the Chicago Cubs
Jon Lester is Retiring - Bleacher Nation
Red Sox, Cubs pitcher Jon Lester retires after 16 years, 3 World Series titles
Former Red Sox pitcher Jon Lester pops up at Fenway to catch up with some old friends - The Boston Globe
Three-Time World Series Champ Jon Lester Announces Retirement After 16 MLB Seasons - CBS Boston
Jon Lester, former Cubs, Red Sox pitcher, announces retirement
MLB veteran pitcher Jon Lester retires after 16 seasons
Jon Lester recalls favorite David Ortiz memory as Papi nears retirement
MLB news: Jon Lester announces retirement after 16-year career
Jon Lester retires: Former Red Sox, Cubs ace concludes 16-year career - Sports Illustrated