Royals relief pitcher Kelvin Herrera generates a lot of his power with his legs.
Royals relief pitcher Kelvin Herrera generates a lot of his power with his legs.
Royals relief pitcher Kelvin Herrera generates a lot of his power with his legs.

Before he became a major-league closer, Kelvin Herrera idolized Bartolo Colon

May 26, 2018 06:09 PM