Drafted in the 31st round (942nd overall) by the Seattle Mariners in 2008.
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Castillo has a similar skinny body to Antolin's, and his stuff grades out a notch lower. He's touched 90 mph and throws four pitches, including a curveball that has potential to be average. He's long and loose-bodied and probably not physically ready for the pro grind; he's committed to Cuesta (Calif.) JC.
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