Luis Alvarado

Alvarado was a 33rd-round pick of the Red Sox out of the Puerto Rico Baseball Academy in 2014 as a rangy shortstop, although many scouts liked him better as a pitcher. His bat has struggled to live up to expectations at Nebraska--he's failed to top .400 in slugging as a sophomore or junior as a third baseman/outfielder. But he made one pitching appearance in the Cape Cod League that immediately reminded scouts that his best pro spot is on the mound. The 6-foot-3 righthander has sat 91-92 mph and touched 94 this spring while also showing a usable breaking ball. He's athletic and there's hope for more to come since he's relatively new to pitching.