Former Cubs pitcher Jon Lester, part of team's World Series core, announces his retirement - Chicago Sun-Times

Jon Lester

Two cities, one legend: Jon Lester reflects on one of a kind career with Sox, Cubs, Sports

Jon Lester retires: Five-time All-Star and three-time World Series champion calls it a career after 16 seasons

Former Cubs Pitcher Jon Lester: I Got to Play for Amazing Teams in Chicago – NBC Chicago

Former Cubs, Red Sox pitcher Jon Lester announces retirement

Chicago Archives - CHICAGO style SPORTS

Cubs manager David Ross finally gets to show what he's really got - Chicago Sun-Times

Former Cubs pitcher Jon Lester, part of team's World Series core, announces his retirement - Chicago Sun-Times

Cubs Extra: Cubs have struggled with clutch or choke question throughout competitive run - Chicago Sun-Times

Cubs' Jon Lester goes for 13th straight 30-start season - Chicago Sun-Times