Eduardo Del Rosario, RHP, Minnesota Twins

FB 89-94 (91-92) … CH 82-85 … SL 79-81.

Very loose arm; whip-like arm action from low three-quarters release. Tons of arm speed; relatively long arm action with some trouble letting it catch up to his body out front. Very thin, wiry frame; tons of room to add weight and he’ll need it, both for durability and power to add velo and pitch life. Younger guy; still some time yet to reach physical ceiling … Arm-side fastball runs very heavy, boring on RHH with lots of horizontal life; some sink, too, but can’t consistently manipulate it for downward life and lacks true downward plane with low arm angle and release point. Fastball can really take off on him to arm-side; needs to corral, and would love to see him better dot the glove-side corner and play with some back-door feel … Slider sweeps horizontally across the plate more than flashing vertical depth. Needs to better manipulate pitch for depth here as with fastball; as it stands now, pitch will struggle to get off the barrel and miss bats against better hitters … Changeup was distinct third pitch based on my looks; admittedly need to see it more often to really grade it out, but must wonder about speed differential; without serious downward action on changeup, not sure there’s enough velo differential here to leave hitters unable to self-correct and make contact when they get out on front foot.

Definite relief profile; still lots of room left to grow into his body and realize his physical upside; in doing so, he should theoretically continue to throw harder and show better pitch life across the board with full repertoire. If that happens, he’s a typical late-inning short reliever, though probably more of a set-up type than a closer. If he can’t quite get there with velo or life, Eduardo Del Rosario will fall back into a low-leverage middle relief role, or back to organizational depth with call-up potential for the Minnesota Twins.

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