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Physical Description: Physical, mature
frame. Minimal remaining projection.
Mechanics:
Throws from a three-quarters arm slot. Short arm action with significant
effort as he comes forward. Starts on the first base side of the rubber.
Hides the ball well in his delievery.
Fastball:
93-95 mph. Heavy pitch with late downward life.
Slider:
86-87 mph. Short, vertical break. Currently below-average.
Curveball:
80-82 mph. Slower, more loopy breaking ball. Also currently below-average.
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Career
Notes: Was originally a catcher before converting to
pitching late on in his amateur career. That conversion led to him signing with the Red Sox as a
20-year-old prior to the 2018 season. Impressed in the DSL in 2018, skipped from the DSL to Lowell in
2019. Participated in Fall Instructional League in 2019.
Summation: As a late signee, De La
Rosa is behind the developmental curve, but he shows interesting
raw stuff for a converted catcher. Arm is very strong and can
dial up his fastball, but currently lacks an average secondary
pitch.
Links
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