Kansas City Royals pitcher Kelvin Herrera talks about throwing his slider this year. John Sleezer and Rustin Dodd The Kansas City Star
Kansas City Royals pitcher Kelvin Herrera talks about throwing his slider this year. John Sleezer and Rustin Dodd The Kansas City Star

The Nationals reportedly are interested in Royals reliever Kelvin Herrera

May 01, 2017 11:07 AM