Former Cubs, Red Sox pitcher Jon Lester announces retirement

Jon Lester: News, Stats, Bio, & More - NBC Sports - NBC Sports

Three-Time World Series Champ Jon Lester Announces Retirement After 16 MLB Seasons - CBS Boston

MLB Rumors: Jon Lester has retired - Lone Star Ball

Former Cubs, Red Sox pitcher Jon Lester announces retirement

Jon Lester announces his retirement after long career with Boston Red Sox and Chicago Cubs - Over the Monster

Jon Lester hits free agency after Cubs decline option; is a Boston Red Sox reunion possible?

Jon Lester missing buddy John Lackey at camp

Bernie: As Jon Lester Retires, An Appreciation Of A Former Rival And His Brief But Special Time As A Cardinal. - Scoops

An update on Javier Báez, Kris Bryant, Anthony Rizzo and other former Cubs - Bleed Cubbie Blue

Longtime Red Sox ace Jon Lester retires after 16 MLB seasons

Jon Lester, Major League Baseball, News, Scores, Highlights, Stats, and Rumors