Red Sox trade Jon Lester to Oakland as Detroit take David Price from Rays, MLB
Cardinals trade for Jon Lester, J.A. Happ
A's get Lester, Gomes from Red Sox for Céspedes
SoxProspects News: Jon Lester: The rise of the $155 million man
Jon Lester - Wikipedia
Jon Lester, former Cubs, Red Sox pitcher, announces retirement
Mastrodonato: Dave Dombrowski's decision to sign Nathan Eovaldi looking like a win for the Red Sox
With Jon Lester's retirement we ask: How do you define a Hall of Fame starting pitcher? - The Boston Globe
On One Pitch, a Scintillating Outing Turns Sour for Tanaka - The New York Times
Should The Boston Red Sox Trade Jon Lester?
Jon Lester's retirement reminds us Red Sox never should have let him go
Jon Lester retires