8. Samuel Basallo, Baltimore Orioles
One of the youngest prospects in the game, Samuel Basallo, made his major league debut at 20 years old last season. Now 21, the left-handed hitter has earned his spot in Baltimore’s starting lineup. Over the past three seasons, Basallo has consistently posted above-average wRC+ numbers, and blasted 15 or more homers. For now, he’ll slot into the O’s lineup as the DH, where he’ll continue developing his power potential.