He previously played in MLB for the Boston Red Sox from 2006 to 2014 and the Oakland Athletics in 2014 .
Jonathan Tyler Lester ( born January 7 , 1984 ) is an American professional baseball pitcher for the Chicago Cubs of Major League Baseball ( MLB ) .
Jonathan Tyler Lester previously played in MLB for the Boston Red Sox from 2006 to 2014 and the Oakland Athletics in 2014 .
Jonathan Tyler Lester ( born January 7 , 1984 ) is an American professional baseball pitcher for the Chicago Cubs of Major League Baseball ( MLB ) .