Kelvin Herrera came over from Kansas City with a 1.05 ERA, two walks (0.70 BB/9), 22 Ks (7.71 K/9), two home runs allowed, and a stingy .207/.223/.283 line against in 25 2⁄3 innings on the mound as the Royals’ closer.
“We wanted a guy that had been through the wars before, that’s been established, and was pitching extremely well,” Washington Nationals’ GM Mike Rizzo told reporters after making the 3-for-1 deal which sent minor league infielder Kelvin Gutierrez, outfielder Blake Perkins, and right-hander Yohanse Morel to the Royals.