05/24/2015 - National Tryout - Wappinger Falls, NY Blum continues to show improvements in his baseball abilities with a promising future on the mound. Arm action is outstanding working loose and quickly to the plate. Arm strength has improved as he threw his top velocity to date, topping out at 88 mph. Fastball showed a range of 83-88 mph with plus arm side run. Off speed stuff show as quality pitches that will get outs at the next level. Breaking ball displays 11/5 shape with late / sharp action. He maintains arm side run on his changeup, showing a plus feel for with arm side run. Command / control are superior as he pounds the zone with all 3 pitches, locating to both sides of the plate. Greg has the makings of a special type player and will get looks from the top collegiate coaches.