PROSPECT: Cooper Hjerpe, SP, St. Louis Cardinals
ANALYSIS: The Cardinals' first-round selection last summer out of Oregon State, the lefty made big impressions in fall instructs but hadn't made his pro debut until this season, when the Cardinals sent him to Peoria in the Midwest League.
Hjerpe has a fastball that reaches the mid-90s along with a sweeper slider, a strong change, and a below-average curve. He makes all of his raw stuff play up when he's at his best due to his low arm slot and long extension. In his pro debut, Hjerpe has struggled significantly with control, walking 18.2% of hitters. He's also posted one of the highest FIPs in the minors at 8.46.
VERDICT: Hjerpe's location is leading to hitters being able to sit on his fastball, leading to an exorbitant home run rate. He's shown excellent control in the past, so if he can regain that control, he could re-establish himself as an intriguing prospect. For now, stay away.
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