According to multiple sources including Jon Heyman of Fan Rag Sports, the Washington Nationals have acquired RHP Kelvin Herrera from the Kansas City Royals.

The Nationals will send #11 prospect OF Blake Perkins, #10 prospect 3B Kelvin Gutierrez, and 17-year old RHP Yohanse Morel.

Herrera, one of the best relievers expected to be available, was enjoying an excellent walk year with the Royals. In 25.2 innings, he recorded 14 saves, struck out 22 batters, and posted a 1.05 ERA.

The two-time All Star closer will now join an elite backend of the Nationals bullpen which includes Ryan Madson and Sean Doolittle.