When Jared Miller, his socks pulled up near his knees, uncorks his 6-foot-7 frame toward home plate, he lets loose low-to-mid-90s fastballs along with sliders he began throwing on advice from Red Sox ace David Price.
Miller, a left-handed relief prospect, has not allowed a run in three outings in spring training, a start that follows an 18 1/3-inning scoreless streak last year in the Arizona Fall League.
He qualifies as one of the more interesting contenders for a spot in the Diamondbacks’ bullpen, an area that appears just as unsettled as it was when camp began three weeks ago – and perhaps even more so.