Red Sox's reported offer to Jon Lester: 6 years, $110-$120 million
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Former Cubs pitcher Jon Lester, part of team's World Series core, announces his retirement - Chicago Sun-Times
Two cities, one legend: Jon Lester reflects on one of a kind career with Sox, Cubs, Sports
Family is boss for retiring Ross
With Jon Lester signing, Cubs shake up the baseball world – Orlando Sentinel
Interview with Jon Lester on his FIRST DAY after Retirement
MLB veteran pitcher Jon Lester retires after 16 seasons
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Jon Lester rejects Red Sox, agrees to six-year, $155M deal with Cubs – Boston Herald
Did Red Sox Really Low-Ball Lester With Initial Offer?
Red Sox: Jon Lester credits former Boston ace's work ethic as inspiration
Maturing Jon Lester now Red Sox leader - The Boston Globe