👉 TAP TO SAVE 50% WITH CODE SPRING
X
Lost password?

Don't have an account?
Gain Access Now

X

Receive free daily analysis

NFL
NBA
NHL
NASCAR
CFB
MLB
MMA
PGA
ESPORTS
BETTING

Already have an account? Log In

X

Forgot Password


Impact Fantasy Baseball Prospects Ready To Shine: Agustin Ramirez, Jonatan Clase, Owen Caissie

Owen Caissie - Fantasy Baseball Prospects, Rookies Sleepers, MLB Call-Ups

Jarod analyzes three top fantasy baseball prospects - Agustin Ramirez, Jonatan Clase, Owen Caissie - who could make big impacts this season. These MLB prospects are potential waiver wire pick-ups or stashes.

It's Week 21 of the MLB season, and some teams are positioning themselves for a deep postseason run while some are already prepping for next season. How do you prep for next season, you ask? Teams bring up top prospects in order to give them a taste of big-league pitching before thrusting them into full-time roles the following season.

With fantasy managers picking the waiver wire clean at this point in the season, prospect call-ups can be a fresh injection of offense, so it is important to know who might be on the way and what they can offer. I wanted to highlight three fantasy baseball prospects who could make notable impacts for their teams (and your fantasy teams) down the stretch.

These players are potential stash candidates if you don't want to miss out, especially in deeper leagues. I included the availability of each player in Yahoo leagues with each breakdown. Let's take a look at some of the hottest names in the minor leagues!

Featured Promo: Save 50% the regular price with discount code SPRING, for a limited time. Exclusive access to our Team Sync platform, DFS cheat sheets, Lineup Optimizers, betting/prop picks, and exclusive content from Nick Mariano and Eric Cross! GAIN ACCESS NOW

 

Agustin Ramirez - C, Miami Marlins

Current Level: Triple-A Jacksonville
Availability: 1% rostered
2024 AA stats: 58 G, .289/.372/.570, 16 HR, 49 RBI, 46 R, 13 SB
2024 AAA stats: 37 G, .246/.344/.399, 5 HR, 27 RBI, 18 R, 6 SB

Agustin Ramirez came over to the Marlins organization as part of the Jazz Chisholm Jr. trade, slotting in as Miami's sixth-ranked prospect. Ramirez has plenty of pop in his bat, popping 18 home runs in 2023 as he ascended from High-A to Double-A. The 22-year-old began 2024 at Double-A, and after slashing .289/.372/.570, he earned a promotion to Triple-A. Between both levels, the Dominican blasted 20 home runs in 87 games before arriving in Miami. In eight games with Triple-A Jacksonville, Ramirez is 10-for-31 (.323) with three doubles and a homer.

While sometimes hitters with power like Ramirez tend to strike out a ton, he owns a career 18.4% K% in the minors which is below average, plus an 11.2% BB% which would be considered above average. As a bonus, the backstop has sneaky wheels for a catcher, nabbing 12 stolen bases in 2023 and 19 so far in 2024, although that likely wouldn't be a big part of his game in the majors.

The current tandem of Ali Sanchez and Jhonny Pereda split catching duties at the moment, but Ramirez is a clear offensive upgrade over both. He may not be as polished behind the plate, but he can also play first base. Jonah Bride is manning first for Miami at the moment, however, most of his major league career has been spent at second and third.

This is the long way of saying that Ramirez is good and presents a younger, more potent offensive weapon than what the Marlins currently have on the field and that there should be multiple ways to get his bat in the lineup. The Marlins are going nowhere this season, so there is no risk involved in doing so. He's proven he can handle minor league pitching at the highest level, so be on the lookout for a late-season call-up, especially if you're looking for some pop from the catcher position with potential multi-position eligibility down the road.

 

Jonatan Clase - OF, Toronto Blue Jays

Current Level: Triple-A Buffalo
Availability: 1% rostered
2024 AAA stats: 84 G, .277/.371/.481, 11 HR, 38 RBI, 51 R, 28 SB
2024 MLB stats: 19 G, .195/.233/.220, 0 HR, 3 RBI, 4 R, 3 SB

Like Ramirez above, Jonatan Clase is now part of a new organization as the result of a trade. Clase came to the Blue Jays when Yimi Garcia was traded to the Mariners. Clase brings a ton of speed to the Toronto farm system, but whether or not he'll be able to show that off at the major league level is another question.

In 2023, Clase stole 79 bags across 129 games at High-A and Double-A, and so far in 2024, he's swiped 28 in 66 games at Triple-A. The 22-year-old has a strong career OBP of .375 in the minors thanks in large part to his ability to draw walks, boasting a career walk rate of 14.1%. While a lot of power should not be expected of him, the switch-hitter belted 20 long balls in 2023 and another 11 thus far in 2024.

Unfortunately, in his first taste of big league pitching earlier this season, Clase did not see a ton of success. The Dominican struck out at a 32.6% rate and walked at just 4.7%. The speedster managed to steal just three bases as a result. If he can make more contact in his next go-round in the majors, Clase could become quite the fantasy contributor, especially in the speed department.

The Jays have another five-foot-ten-inch switch-hitting outfielder with speed on the major league roster at the moment in Steward Berroa. Berroa has nabbed five stolen bases already in just 19 games, however, he's batting just .143 (3-for-21) and is striking out at a 33.3% clip. If he continues to do so, it seems Clase could get another shot. For managers in need of steals, you could take a flier on Clase and hope that he displays a refined approach the next time around, and he's available in nearly all Yahoo leagues.

 

Owen Caissie - OF, Chicago Cubs

Level: Triple-A Iowa
Availability: 1% rostered
2024 AAA stats: 93 G, .272/.365/.447, 12 HR, 54 RBI, 44 R, 6 SB

Coming off of a strong year at Double-A where he hit .289 with 22 home runs as a 20-year-old, Owen Caissie started a bit slow, hitting .244 with just one home run in 23 games in April. It was his first taste of Triple-A pitching though, so that should be expected. He has come around since then, however, as the 21-year-old has hit .266 with 11 homers in 67 games from May 1 and forward.

The Cubs were content letting Pete Crow-Armstrong (PCA) hit below .200 for a couple of months so long as he was playing good defense, and it appears their patience has paid off as PCA has gone 16-for-45 (.356) over his last 13 games. So the Cubs outfield is pretty crowded right now with PCA, Seiya Suzuki, and Ian Happ, along with veteran Mike Tauchman coming off the bench. Nevertheless, with Caissie likely roaming the outfield in 2025, the Cubs will want to get him some at-bats down the stretch, especially if they fade further out of the playoff hunt.

Per MLB.com's scouting report, Caissie offers 35-40 home run potential, so the Cubs may accept a high strikeout rate. However, after posting a 31.1% K% at Double-A in 2023, the former second-round pick has dropped that to 27.8% at Triple-A this season, a welcome improvement to say the least. What's more is that he's continued to walk at a high rate, drawing a base on balls in 12.2% of his plate appearances this season. That's a skill that should translate to the majors whenever he does get the chance.

Caissie isn't a must-stash but managers in need of power should keep tabs on him and pounce whenever he does get the call as he could provide an instant boost as teams head into the fantasy playoffs. He's available in nearly all Yahoo leagues at this point.



Download Our Free News & Alerts Mobile App

Like what you see? Download our updated fantasy baseball app for iPhone and Android with 24x7 player news, injury alerts, sleepers, prospects & more. All free!



More Fantasy Baseball Prospects and Rookies




REAL-TIME FANTASY NEWS

Jordan James

Most Likely to be 49ers' RB2 in 2026
Mickey Moniak

Heads to Injured List With Ankle Sprain
Rudy Gobert

Earns Eighth All-Defensive First-Team Selection
Victor Wembanyama

Headlines 2025-26 All-Defensive First Team
Ajay Mitchell

Starting Game 3 Against Spurs
Dylan Harper

Available for Game 3 Against Thunder
De'Aaron Fox

Returns to Action Friday
Jalen Williams

Won't Play Friday Night
Derrick Henry

Remains in RB1 Discussion
Ladd McConkey

is Solid Buy-Low Candidate
Ryan Flournoy

an Intriguing Dynasty Stash Option
Jalen Nailor

is Expected to Have Larger Role in Las Vegas
Frederik Andersen

Hurricanes Keep Faith in Frederik Andersen
Devon Levi

Attracting Interest From Senators
Jacoby Brissett

Cardinals Not Close to a Reworked Deal
Scott Wedgewood

Starting Game 2 Against Golden Knights
Ben Hutton

Scratched for Game 2 Against Avalanche
Mark Stone

Won't Play Friday
Jackson Merrill

has Sore Ribs, Expected to Avoid Injured List
Cale Makar

Remains Out Friday
CFB

Jaron-Keawe Sagapolutele Looking to Take Sophomore Leap
CFB

Jadan Baugh Primed to Lead Florida Offense in 2026
CFB

LSU Hires Ed Orgeron As Special Assistant
NFL

Evan Stewart Pushing Oregon Receiving Corps
CFB

North Carolina and South Carolina Cancel Home-And-Home Series
CFB

Confidence High in Mississippi State's Kamario Taylor
MLB

Reds-Cardinals Game Postponed on Friday
New York Giants

Giants, GM Joe Schoen Agree on a Multi-Year Extension
Andrew Thomas

Giants Managing Multiple Injuries for Andrew Thomas
Cam Ward

Loses 10 Pounds in the Offseason
Trevor Story

has Hernia Surgery, Expected to Miss 6-10 Weeks
Roman Anthony

Dealing With Sprained Ligament in his Finger
Tucker Kraft

a Top Trade Target in Dynasty Leagues?
Cedric Tillman

Falling Out of Favor in Cleveland
Emmett Johnson

the Handcuff to Roster in Kansas City?
Devaughn Vele

Could Dynasty Managers Sell High on Devaughn Vele Early in the Season?
Brenen Thompson

a Perfect Fit for Chargers, Rising in Dynasty Leagues?
Jonathan Taylor

Is Jonathan Taylor Still a High-End Dynasty Option?
Malik Nabers

' Recovery Timeline Still Unclear
Jaxon Smith-Njigba

Comfortably Into His Dynasty Prime
Saquon Barkley

Still a Capable League-Winner at a Sunken Dynasty Cost
Jack Campbell

Signs Four-Year Extension with Lions
Matthew Stafford

Signs One-Year Extension with Rams
Evan Mobley

Fills the Box Score in Game 2 Loss
James Harden

Held to Two Assists Thursday
Donovan Mitchell

Leads Cavaliers in Scoring in Game 2 Defeat
Karl-Anthony Towns

Records Double-Double in Game 2 Win
Sebastian Aho

Picks Up an Assist in Series-Opening Loss
Mikal Bridges

Adds 19 Points as Knicks Grab 2-0 Lead
Jalen Brunson

Hands Out 14 Assists in Game 2 Win
Seth Jarvis

Needs 33 Seconds to Score in Game 1 Loss
Josh Hart

Erupts for Playoff Career-High 26 Points in Game 2
Jaccob Slavin

Struggles in Game 1 Against Canadiens
Jakub Dobes

Sharp in Game 1 Victory
Cole Caufield

Bags Two Points in Impressive Road Win
Juraj Slafkovsky

Opens Conference Finals With Three-Point Performance
Nick Suzuki

Notches Three Assists in Game 1 Win Over Hurricanes
Ronald Acuña Jr.

Ronald Acuna Jr. Exits Early, X-Rays Come Back Negative
Jrue Holiday

Wants to Stay in Portland
Ayo Dosunmu

Timberwolves Hope to Bring Back Ayo Dosunmu
Dylan Harper

Considered Questionable for Friday Night
De'Aaron Fox

Listed as Questionable for Game 3
Jalen Williams

Questionable for Game 3 Against Spurs
Alex Tuch

Hopes to Remain in Buffalo
Sidney Crosby

Wants to Play for "as Many Years as Possible"
Troy Terry

Could Miss Start of Next Season Due to Hip Surgery
Arber Xhekaj

Scratched for Game 1 of Eastern Conference Finals
Jakub Dobes

Seeks More Success Against Hurricanes
Frederik Andersen

Looks to Stay Undefeated Thursday
Robby Snelling

Will Undergo Tommy John Surgery
Devin Vassell

Contributes 22 Points in Wednesday's Loss
Stephon Castle

Tallies Team-High 25 Points in Game 2 Loss
Victor Wembanyama

Records Eighth Postseason Double-Double
Valeri Nichushkin

Ends Scoring Slump in Game 1 Loss
Nathan MacKinnon

Extends Point Streak With an Assist
Jackson Merrill

Tweaks his Back on Wednesday, Pulled Early
CFB

Lincoln Riley Believes USC is Ready for Playoff Run
CFB

Notre Dame-Stanford Rivalry Renewed Through 2028
CFB

Ahmad Hardy Says He's "Back to the Road to Success"
CFB

Texas Tech Graduate Judge Recuses Himself from Brendan Sorsby Case
CFB

UCLA Tackle Jordan Davis Officially Eligible for 2026 Season
CFB

Bret Bielema Supports Significant College Football Playoff Expansion
Michael Thorbjornsen

Brings High Upside to CJ Cup Byron Nelson
Luke List

Carrying Poor Form Into CJ Cup Byron Nelson
Tom Kim

Hoping to Build on Strong Myrtle Beach Finish
PGA

Sungjae Im Brings Upside to TPC Craig Ranch
Billy Horschel

Looking for Turnaround at CJ Cup Byron Nelson
Adam Hadwin

Difficult to Trust at TPC Craig Ranch
Tony Finau

Looking for Consistency at TPC Craig Ranch
Luke Clanton

Searching for Form at CJ Cup Byron Nelson
Aaron Rai

Withdraws From CJ Cup Byron Nelson
Wyndham Clark

Can Wyndham Clark Find Form at CJ Cup?
Si Woo Kim

Looks To Stay Hot at CJ Cup
Scottie Scheffler

to Defend CJ Cup Byron Nelson Title This Week
Jordan Spieth

Looking For Victory at TPC Craig Ranch
PGA

Matti Schmid Looks to Keep Recent Momentum Going at TPC Craig Ranch
Brooks Koepka

a High-Upside Play at CJ Cup Byron Nelson
Yandy Díaz

Yandy Diaz Exits Early on Tuesday After Being Hit By Pitch
Chris Kirk

Continues Search For Putting Form at TPC Craig Ranch
Rasmus Hojgaard

Looking to Shake Off Poor Major Showing at TPC Craig Ranch
Joel Dahmen

is of No DFS Consideration This Week in Dallas
Pierceson Coody

is Not The Fun DFS Play He Used to Be
Gerrit Cole

to Make Season Debut on Friday Against Rays
Drake Baldwin

Braves Place Drake Baldwin on Injured List With Oblique Strain
CFB

Ezavier Crowell has Immediate Opportunity at Alabama
CFB

Mark Bowman a Day 1 Impact Player for USC?
CFB

Bill Belichick Says Relationship with First North Carolina Team "Wasn't Great"
CFB

Kemario Taylor a Breakout Candidate at Quarterback
CFB

Trinidad Chambliss the Undisputed Top SEC Quarterback Entering 2026?
CFB

Rocco Becht The "Unifier" of Penn State's Roster
Jackson Holliday

Orioles Reinstate Jackson Holliday From Injured List on Monday
Ronald Acuña Jr.

Braves Reinstate Ronald Acuna Jr. From Injured List on Monday
Jose Altuve

Astros Put Jose Altuve on Injured List With Oblique Strain
Corey Seager

Going on Injured List With Back Injury
Jeremy Peña

Jeremy Pena Reinstated and Starting on Monday Against Twins
Melquizael Costa

Drops Decision At UFC Vegas 117
Arnold Allen

Bounces Back
Daniel Santos

Suffers Second-Round TKO Loss
MMA

Dohoo Choi Wins His Third Consecutive Fight
Malcolm Wellmaker

Suffers His Second Loss In A Row
Juan Diaz

Scores Second-Round Submission
Christian Edwards

Defeated At UFC Vegas 117
CFB

Transfer Running Back Arnold Barnes Visiting Iowa State on Monday
Modestas Bukauskas

Gets Split-Decision Win
Jhostynxon Garcia

Expected to Join the Pirates on Tuesday
Colt Emerson

Mariners Promoting Top Prospect Colt Emerson to Major Leagues
RANKINGS
C
1B
2B
3B
SS
OF
SP
RP

RANKINGS

QB
RB
WR
TE
K
DEF