The left-handed reliever for the Arizona Diamondbacks pitched 39 2/3 innings over 57 appearances last season. His ERA was 3.40 with a 82 ERA-minus. He had 41 scoreless outings for a strikeout percentage of 71.9%, good for 12th in the league. His command of his fastball was also strong, and his sliders were deadly. Despite his recent struggles, Mantiply’s promising future in the Arizona Diamondbacks’ organization is bright.