sentences:  After pitching just 26 professional innings, 25 of those at three minor league stops in 2012, Doolittle was called up to the majors on June 5, 2012, against the Texas Rangers pitching one and a third inning while striking out three with all fastballs and none going below 94 mph.He quickly became a key bullpen piece as the top lefty specialist earning his first career save on July 21 against the New York Yankees.He served as a set-up man for A's closer Grant Balfour the rest of the way as Oakland went on to win the AL West on the final day of the season.