Ben Heller

A 22nd round pick just four years ago, Heller quickly worked his way up through the minor-league ranks, impressing at each stop along the way. He spent most of the 2017 season with Triple-A Scranton/Wilkes-Barre, and was lights out at the highest level of the minors. Opponents hit just .172 against the righty, while he struck out 82 batters in 56.1 innings. The 26-year-old was able to translate that success in the minors to an impressive showing in the majors, allowing just one run and five hits over 11 innings, though he struggled a bit with control in those stints with a 9:6 K:BB in nine appearances. Following his strong 2017, Heller figures to get a chance to crack the Opening Day roster in a relief role, but the Yankees have among the league's best bullpen, if not the very best, so it will be tough to pitch his way into high-leverage situations.

He wasn't the headlining prospect in the deal, but Heller was sent over to the Yankees midseason as part of the return from Cleveland in the Andrew Miller trade. The 25-year-old was terrific in the minors, posting a combined 1.69 ERA between both the Double-A and Triple-A levels and held opposing batters to just a .156 average. The righty eventually pitched his way up to the big league club for the first time in his career, though things didn't go as smoothly there in a limited sample size. Heller is really only a two-pitch pitcher, but his fastball occasionally touches triple digits and his slider has proved effective in the minors. He'll enter spring training with an inside track toward winning a roster spot in the bullpen, and though he could be a solid source of strikeouts and holds, it's unlikely Heller gets thrust into many high-leverage situations.