Physical Description: Physical,
mature frame. Minimal remaining projection. Looks heavier than
listed weight of 210 pounds.
Throws from a three-quarters arm slot from the first base side.
Short arm action with significant effort as he comes forward.
Medium leg kick. Hides the ball well in his delivery, keeping it
behind his body until very late. Comes across his body.
Fastball: 93-95 mph. Heavy pitch with late
downward life. Generates weak contact, but can get elevated when
he leaves it up in the zone. Command and control are a work in
Slider: 80-83 mph. Short,
horizontal break. Doesn’t consistently snap off. In 2018 showed
a 86-87 mph variation with more vertical break. Potential
Changeup: 86-88 mph. Firm, lacks feel and
separation from fastball. Looks like a two-seam fastball at
times. Potential below-average offering.
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.
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 and command and control have a ways