Moncada is the first Red Sox player to be given the honor.
The 21-year-old Cuban has fast-tracked through the Red Sox system since signing a $31.5-million contract with the team in 2015. In just his second season playing in the United States, Moncada jumped from High-A to the major leagues and skipped over Triple-A in the process. He posted a .294/.407/.511 slash line with 15 home runs, 31 doubles, and 45 stolen bases across 106 minor-league games before joining the Red Sox earlier this month.
Although his first taste of major-league ball hasn't gone as expected - he's been plagued by base-running miscues and record-strikeout pace - Moncada did record his first big-league hit during his debut start Sept. 3.