The Washington Nationals semi-shocked the baseball world in September by promoting uber-prospect Victor Robles to the majors after just 37 Double-A contests. Robles had his moments, popping two triples en route to a .250/.308/.458 slash line in 27 big league plate appearances. His elite speed and plus-defense also propelled him onto the postseason roster, where he appeared in two NLDS games.
At just 20 years old, Robles flashed plenty of potential in 2017 and proved why he is regarded as the second-best prospect in baseball. However, his incredible youth and lack of high-level plate appearances limit his 2018 MLB ceiling.