10/27/12 DeYonker has a ton of upside and was one of our favorites at the Unsigned Senior Showcase. It is easy to see that he will eventually be a mid-80's pitcher with the ability to reach the upper 80's. His arm was lightening quick and easy. He is only 6-foot tall but 155-pounds, which leads us to believe that he will add a good 20-30 pounds. His breaking ball was tight and down in the zone. DeYonker if given time to develop will be a good pickup.
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