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Rafael Devers, Red Sox

After a successful 2017 rookie season raking the ball after being called up in late July of that year, the 22-year-old Devers didn't fare as well at the plate in 2018. He still put up decent counting numbers though with 21 home runs, 24 doubles, and a .240 average in 121 games. He made a ghastly 24 errors at the hot corner last year. Still very young, he was rated as the 18th-best prospect by Baseball America entering 2017.