Players signed indicated in Bold
||Boston Red Sox
|South of the Border had some competition this spring as scouts bypassed the iconic Interstate 95 tourist trap to see Callahan pitch for Dillon High. He has a good pitcher's frame with projection remaining at 6-foot-2, 195 pounds. His fastball ranges from 88-92 mph and touches 93-94. Depending on the day, he can show two good breaking balls. He has a 12-to-6 curveball as well as a slider with short break and depth. He pitches with a high arm slot, so the curveball will likely be the better pitch for him down the road. He has shown some feel for a changeup that sits around 80 mph, but like most high school arms it's a pitch he'll need to work on. A South Carolina signee, Callahan won't be 18 until August, so scouts can dream a little more on his upside.