Longtime Red Sox ace Jon Lester retires after 16 seasons

From Catfish Hunter to Gerrit Cole - The history of MLB's highest-paid pitcher - ESPN

Jon Lester retires after 16 seasons

Jon Lester, done after 16 seasons, gave the Red Sox everything he had — something today's starters aren't asked to do - The Boston Globe

N.L. Division Series Preview: Chicago Cubs vs. St. Louis Cardinals - The New York Times

In an Era of Throwers, Adam Wainwright Is a Pitcher - The New York Times

Jon Lester, former Boston Red Sox pitcher, retires after 16-year MLB career (report)

Ex-Cubs ace Jon Lester's influence on Justin Steele's strong start – NBC Sports Chicago

Longtime Red Sox ace Jon Lester retires after 16 seasons

Jon Lester, done after 16 seasons, gave the Red Sox everything he had — something today's starters aren't asked to do - The Boston Globe

Nationals, Cardinals Swap Jon Lester For Lane Thomas - MLB Trade Rumors

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