The Boston Red Sox have acquired minor league right-hander Ramses Rosario from the Washington Nationals in exchange for the No. 66 international bonus slot, which is valued at $327,700, according to Baseball America.
Rosario was signed by the Nats in the 2012-13 international signing period, and has worked exclusively in the Dominican Summer League since.
The 19-year-old has a combined 4.11 ERA in 72 1/3 innings in 34 games (31 relief appearances), averaging 6.2 K/9 against 3.4 BB/9.
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