Top 20 Breakout MLB Stars of 2018

2. Ronald Acuna Jr.

Ronald Acuna Jr. entered the 2018 MLB season as the top prospect in all of baseball and he sure did not disappoint once he debuted at the end of April.

Acuna ended up hitting .293 in his first big league season, with 26 home runs, 16 stolen bases and 64 RBI. Acuna helped the Atlanta Braves reclaim the NL East crown for the first time in five years and won the NL Rookie of the Year Award.