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Cardinals No. 6 prospect Cooper Hjerpe racks up seven strikeouts over 3 1/3 hitless innings for High-A Peoria
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Cardinals No. 6 prospect Cooper Hjerpe strikes out the side in the 4th to polish off a seven K scoreless outing for High-A Peoria
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Cardinals No. 7 prospect Cooper Hjerpe strikes out three across two perfect innings of relief in the Arizona Fall League
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With Pipeline's Jonathan Mayo in the booth, check out Cooper Hjerpe's 5th inning in the Fall League, the Cardinals' No. 7 prospect
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No. 6 Cardinals prospect Cooper Hjerpe racks up five strikeouts over six no-hit frames for High-A Peoria
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Cardinals No. 6 prospect Cooper Hjerpe fanned seven over 5 2/3 scoreless frames for High-A Peoria.
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No. 7 Cardinals prospect Cooper Hjerpe records his first pro strikeout for High-A Peoria