Kelvin Herrera: 'That was a poor job by me'

Kelvin Herrera took the loss after a rough ninth inning against the Astros on Thursday night.
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Kelvin Herrera took the loss after a rough ninth inning against the Astros on Thursday night.

Vahe Gregorian: With thin margin for error, Royals can’t afford Kelvin Herrera’s slump

June 09, 2017 07:00 AM