The Washington Nationals acquired right-handed pitcher Kelvin Herrera from the Kansas City Royals in exchange for infielder Kelvin Gutierrez, Minor League outfielder Blake Perkins and Minor League ...

Former Royals closer Kelvin Herrera arrived at Nationals Park and into his new clubhouse and was quickly welcomed by a pair of former teammates in relievers Tim Collins and Ryan Madson. Herrera had ...

KANSAS CITY, Mo. -- All-Star reliever Kelvin Herrera and Royals right fielder Alex Rios have been diagnosed with chicken pox, raising concerns that others on the AL Central leaders may have been ...

The Royals are expected to recall pitcher Kelvin Herrera from Triple-A Omaha Friday, according to multiple reports. Herrera, who was placed on the taxi squad Thursday, is 3-5 with a 5.20 ERA, 1.45 ...

KANSAS CITY, Mo. -- Tempers flared again Sunday in the Oakland-Kansas City series, with five more Royals getting ejected. The benches emptied for the third straight day after Royals reliever Kelvin ...

Royals right-hander Kelvin Herrera earned his second save of 2013 on Wednesday night against the Twins and now boasts a 0.00 ERA, 0.69 WHIP and 10/1 K/BB ratio through 4 1/3 innings of work this ...