http://www.fangraphs.com/scoutboard.aspx?draft=2017mlb&type=1&pos=all
#28 on that board.
From Longenhagen:
"Though very likely to end up in the bullpen, Pearson has a two pitch mix that might play at the back of it with a mid-90s fastball that has crested 100mph during bullpen sessions and a potential plus slider scouts think will improve once he scraps his fringe, interloping curveball."