Ben Heller

Fangraphs

Baseball-reference

Originally drafted by the Cleveland Indians, Ben Heller was acquired in 2016 as part of the Andrew Miller trade. Heller’s fastball has high upside, flashing a 70 scouting rating (out of a max scale of 80) and touches 100mph. He pitched well during his 2017 September callup, though he only threw 9 innings. This season, Heller will probably split time between SWB and the big club.