MACK - DEEP DIVE - OF Randy Guzman - RHRP Dylan Ross - LHSP Colton Cospor

 

Full Name: Randy Enmanuel Guzman

Born: April 19, 2005, in Tenares, Dominican Republic

Position: Outfielder (primarily Right Field, also plays First Base and Left Field)

Bats/Throws: Right/Right

Physical: 6'4", 215 lbs

Team: New York Mets (Minor Leagues, Single-A Affiliate, St. Lucie Mets)

Status: Active

Age: 20

Career and Role

Randy Guzman is a young prospect in the Mets’ minor league system, known for his impressive physical build and offensive potential. He has played in the Dominican Summer League (DSL) Mets Orange and has progressed to the Single-A St. Lucie Mets. In 2025, he has shown promise at the plate, with notable performances including an RBI double for St. Lucie, as highlighted in a Reddit post from the New York Mets community. His first season stateside has been described as impressive, indicating he’s a prospect to watch in the Mets’ system.

2025 –

    FCL METS:              178-PA, 33-K, 7-HR, 33-RBI, 15-BB, .282/.371/.474/.845

    ST. LUCIE METS:   105-PA, 21-K, 3-HR, 24-RBI, 6-BB, .333/.381/.604/.985

Summary

Randy Guzman is a 20-year-old outfielder in the Mets’ minor league system with a promising bat and physical presence at 6’4”, 215 lbs. He is active with the Single-A St. Lucie Mets and has shown offensive potential in 2025.

Ernest Dove                                       @ernestdove

Mets 25 yr old RP prospect Dylan Ross numbers across 3 affiliates this season (A+, AA, AAA)

49 gm    54 inn    29 H    13 ER (2.17 ERA)    33 BB    80 K

.154 opp AVG      .531 opp OPS

credited with 9 'holds' and 7 saves

rule 5 eligible this winter

                deep dive…

Dylan Ross is a 25-year-old right-handed pitcher in the New York Mets organization, drafted in the 13th round of the 2022 MLB Draft from the University of Georgia.

Born September 1, 2000, in Statesboro, Georgia, he stands at 6’5” and weighs 251 pounds.

Ross has overcome significant challenges, undergoing Tommy John surgery in 2022 during his junior year at Georgia and a subsequent UCL revision surgery in 2023, which delayed his professional debut until September 2024 with the Single-A St. Lucie Mets with one inning, in which he fanned the side.

 Despite these setbacks, he has rapidly progressed through the Mets’ minor league system, reaching Triple-A Syracuse in 2025.

Career and Performance

Ross has shown promise as a reliever in 2025, pitching across High-A Brooklyn, Double-A Binghamton, and Triple-A Syracuse. He has a 2-0 record, a 2.25 ERA, and 77 strikeouts in 52 innings, with a 30% strikeout rate in Triple-A. However, his command needs refinement, as evidenced by a 6.3 walks per nine innings rate in Triple-A. His performance, including a 1.80 ERA in 30 Triple-A innings and a 49.4% whiff rate on his splitter, has positioned him as a candidate for a late-season MLB bullpen call-up in 2025, especially as he is Rule 5 eligible this offseason.

Repertoire

Ross is known for his power pitching, relying on a four-pitch mix:

Fastball: Sits in the mid-90s, often averaging 97 mph, and has topped out at 102 mph. It features arm-side life and good extension, making it effective for blow-by scenarios, though he can overthrow, impacting command.

Splitter: Thrown in the high 80s to low 90s, this pitch is a standout with a 49.4% whiff rate in Triple-A, serving as a key strikeout weapon.

Slider: Sits in the mid-to-high 80s, tunneling well with his fastball. When effective, it has tight break, but it can flatten into a cutter-like pitch when he loses feel.

Curveball: A less frequently used pitch, graded lower (45 on the scouting scale), but part of his arsenal for added variety.

 

MLB Draft League                            @mlbdraftleague

𝐀𝐥𝐥-𝐒𝐞𝐜𝐨𝐧𝐝 𝐇𝐚𝐥𝐟 𝐓𝐞𝐚𝐦

The first 2025 second half player to be signed, Colton Cosper joined the @mets organization as an MLB Draft League Pitcher of the Week (7.15-20) with one run surrendered in three starts (17 innings).

 

                deep dive…

Colton Cosper is a 23-year-old left-handed pitcher in the New York Mets organization, signed to a minor league contract in late July 2025 after a standout summer stint with the Williamsport Crosscutters in the MLB Draft League.

Born September 8, 2002, in Carrollton, Georgia, he stands at 6'1" and weighs 190 pounds. A Mercer University product, Cosper earned 2024 All-SoCon First Team honors (media and coaches), SoCon All-Tournament Team selection, and CSC Academic All-District recognition during his college career, where he honed a deceptive, control-oriented style.

Undrafted out of college, his pro signing came after a dominant three-start stretch with Williamsport: 17 innings pitched, 0.53 ERA, 20 strikeouts, and just one walk, showcasing his command and ability to miss bats.

He began his Mets career in the Florida Complex League (FCL Mets) rookie affiliate, quickly advancing through High-A Brooklyn and Double-A Binghamton before reaching Triple-A Syracuse by early September 2025.

His rapid rise positions him as a potential 2026 organizational starter, especially given the Mets' need for lefty relief arms.

Career and Performance

Cosper's pro debut highlighted his poise under pressure, with his Williamsport gem (5 IP, 1 ER, 8 K vs. Trenton Thunder) drawing Mets scouts. In the Mets system, he's transitioned seamlessly to a multi-inning reliever role, emphasizing efficiency and deception over velocity. Key stats through September 23, 2025:

Overall Minors (2025): 2-0 record, 1.98 ERA, 0.98 WHIP, 10.3 K/9, 2.6 BB/9, .208 opponent BA.

Triple-A Syracuse: 1.93 ERA in 14 IP over 8 appearances (3 starts), with a 28.6% strikeout rate and opponents hitting .179 against him.

His ground-ball tendencies (48% GB rate) and low walk numbers make him a fit for Citi Field's dimensions, though he'll need to add velocity or secondary bite to handle big-league hitters. No major injuries reported, and his athletic, projectable frame suggests room for growth.

Repertoire

Cosper operates as a "touch-and-feel" lefty with a compact, quick arm action from a low-3/4 slot (release point ~4.9 feet), creating excellent deception by hiding the ball until release. He works fast, attacks the zone, and mixes pitches to keep hitters off-balance rather than overpowering them. His arsenal is a four-pitch mix, graded on the 20-80 scouting scale (per recent Mets evaluations):Pitch

Fastball               86-89 mph (touches 90)

Four-seam with late run and sink; commands both sides of the plate, used as a strike-stealer and chase pitch. Effective due to arm speed illusion.

50-55 grade; primary pitch (~50% usage).

Changeup           82-85 mph

Fading, arm-side action that mimics fastball shape before diving low-away; generates whiffs (35%+ rate) and weak contact. His go-to off-speed offering.

55 grade; high usage (~30%), deceptive "slower fastball."

Slider                    78-82 mph

Sharp, late-breaking with two-plane tilt (sweeping lateral movement); starts middle-in and bucks gloves, tough on righties.

50 grade; ~15% usage, best when located low.

Curveball            74-77 mph

12-6 shape with depth; less consistent but adds variety for tunneling with the slider. Used sparingly against same-handed hitters.

45 grade; ~5% usage, developing feel.

Cosper's strength lies in sequencing and location—his low release enhances movement profiles, leading to a 24.5% K-rate overall. Areas for improvement include boosting fastball velocity (currently fringe-average) and refining the curve for more sweep-and-miss. Scouting consensus (e.g., MLB Pipeline) pegs him as a potential mid-rotation starter or high-leverage reliever with polish, projecting an overall future value of 45.