Jon Lester retires after epic MLB career as Red Sox, Cubs ace - Sports Illustrated
Boston Red Sox Nation - Lackey, Martinez, Beltre, Ortiz, Beckett, Ellsbury, Lester, Pedroia, Youkilis, Matsuzaka, Papelbon, Drew, Bard, Buchholz, Varitek, Hermida, Lowell, Wakefield
Johnny Cueto - Wikipedia
Chicago Cubs ace Jon Lester beats the yips - Sports Illustrated
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Jon Lester retires
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Former Cubs, Red Sox pitcher Jon Lester announces retirement National News - Bally Sports
Former Cubs, Red Sox pitcher Jon Lester announces retirement
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Jon Lester beat the yips with focus and determination - Sports Illustrated
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