One of the biggest storylines at the start of each season is which prospects played well enough during spring training to earn a spot on the Opening Day roster.
Outfielders Jackson Chourio (Brewers) and Wyatt Langford (Rangers) were among the most highly regarded newcomers who made their MLB debut on Opening Day, while others like Evan Carter (Rangers), Masyn Winn (Cardinals) and Nolan Schanuel (Angels) saw big league action last year but still carried rookie status.
The focus here is not on the prospects who made Opening Day rosters, but on the ones who will headline the next wave of call-ups in the coming weeks.