TAP FOR 6 MONTHS OF PREMIUM FREE 💰
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


POPULAR FANTASY TOOLS

Expert Advice
Articles & Tools
Import Your Leagues
Draft Rankings
Draft Simulator
Enter League Settings
Compare Any Players
Rookies & Call-Ups
24x7 News and Alerts

Hot MLB Prospects to Watch for Fantasy Baseball - Week 18 (2024)

fantasy baseball prospects MLB prospects rookies call-ups

Andersen looks at the top prospects coming off an impressive week in the minor leagues heading into Week 18 (2024). These MLB prospects may become strong fantasy baseball waiver-wire stashes or pickups.

Welcome back, RotoBallers! We're heading into Week 18 of the fantasy baseball season. Even as the All-Star Break led to a reduced schedule last week, there were still plenty of big plays and impressive prospect performances throughout Minor League Baseball.

It's imperative to monitor the top fantasy baseball prospects who have turned heads thus far. The players listed here are not only coming off dominant weeks but have also impressed over the entire season. Don't be surprised when these exact names are painting corners, mashing homers, and swiping bags at the big league level soon.

Savvy fantasy managers looking for an edge in their leagues should certainly keep an eye on these players over the long haul, as they may prove to be excellent adds in no time.

Be sure to check all of our fantasy baseball draft tools and resources:

 

Omar De Los Santos - OF, New York Mets

Level: High-A
2024 stats:
61 G, .157/.243/.301, 6 HR, 18 RBI, 31 R, 35 SB, 9.4% BB%, 31.4% K%, .194 BABIP, .255 wOBA, 56 wRC+

De Los Santos signed with the Mets out of the Dominican Republic in 2019. At 24, he's on the older side for someone in High-A, but his results as of late could earn him consideration for a promotion to Double-A. The outfielder has a subpar swing that has led to real swing-and-miss concerns, but he's come into a little bit of power lately. He's having one of his better years defensively, compiling a .972 fielding percentage between his two primary positions, right and center field. Finally, his speed can't be ignored, as he's swiped 35 bags (and counting) thus far.

Last week, De Los Santos extended his hitting streak to four games. Over the course of three contests, he went 4-for-10 with two homers, three RBI, one walk, and three strikeouts. He also stole two bases along the way. De Los Santos will need to show that these results are sustainable before the Mets bring him back up to Double-A.

 

Devereaux Harrison - SP, Toronto Blue Jays

Level: Double-A
2024 stats:
17 G, 17 GS, 4-5, 82.2 IP, 4.25 ERA, 4.44 FIP, 7.73 K/9, 4.46 BB/9, 0.87 HR/9, .264 BABIP, 34.3% GB%

Harrison, a Long Beach State product, was selected in the ninth round of the 2022 draft. Originally labeled a reliever, Harrison has transitioned to the rotation and has not made an appearance out of the bullpen this year. He headlines his repertoire with a mid-90s fastball with good life and impressive metrics. He also throws a changeup and breaking ball, but both are merely average secondary pitches at the moment. He's continued to show trouble with command and control, and it would also be nice to see him induce a few more groundouts.

Harrison had an impressive outing last week, nearly silencing the Harrisburg Senators on Friday. He tossed six shutout innings, allowing just one hit and three walks. He also struck out a whopping 10 batters in the effort. This tied his longest outing of the season, and it was also his first shutout appearance since a four-inning gem on May 8.

 

Rubel Cespedes - 1B/3B, Minnesota Twins

Level: High-A
2024 stats:
71 G, .289/.361/.459, 10 HR, 31 RBI, 35 R, 3 SB, 9.9% BB%, 19.8% K%, .338 BABIP, .378 wOBA, 133 wRC+

Cespedes signed with the Twins out of the Dominican Republic in 2019. He's generally a solid hitter, capable of working walks, demonstrating power, and hitting to all parts of the field, but he has shown some susceptibility to elevated fastballs. Nevertheless, he has kept his strikeout rate at a decent level, especially for a power hitter. He's also an appealing player defensively, showcasing enough glovework and arm strength to play both corner infield roles. He's even earned some looks at second base.

Last week, Cespedes went 6-for-11 with two homers, three RBI, one walk, and one strikeout. His statistics this year are generally impressive, so it wouldn't be much of a surprise if he earns a mid-season promotion to Double-A.

 

Ricky Castro - SP, Minnesota Twins

Level: Single-A
2024 stats:
8 G, 5 GS, 4-2, 1 SV, 29.0 IP, 3.72 ERA, 3.06 xFIP, 12.10 K/9, 3.10 BB/9, 0.93 HR/9, .262 BABIP, 28.1% GB%

Castro has emerged as a success story early in his Twins tenure. The right-hander was signed out of the Frontier League in late May, so he's had less than two months in affiliated ball. Nevertheless, he has pitched well enough that Minnesota has already promoted him from Single-A to High-A. Castro gets outs by missing bats, as evidenced by his relatively high strikeout rate and low ground-ball rate. He's made appearances as both a starter and reliever, and while he certainly can occupy a rotation role, he likely won't go more than four innings in an average start.

In his final Single-A outing last week, Castro went five innings, tying his longest outing of the year. He allowed one hit and one hit batsman while striking out seven batters. Undrafted out of college, signed out of indy ball, and already promoted to High-A, Castro has shown an ability to defy the odds and challenge pro hitters in every appearance.

 

Rodolfo Nolasco - OF, San Francisco Giants

Level: High-A
2024 stats:
69 G, .223/.321/.397, 10 HR, 40 RBI, 28 R, 8 SB, 11.5% BB%, 38.7% K%, .349 BABIP, .334 wOBA, 104 wRC+

Nolasco signed with the Pittsburgh Pirates out of the Dominican Republic in 2018, but he shifted organizations in May 2024 after the Giants acquired him in exchange for pitcher Daulton Jefferies. Nolasco is a strong and physical hitter, which has allowed him to tap into plenty of power throughout his young career. However, he does not have a polished swing, and as a result, his strikeout rate has steadily increased in each of the last few years. Defensively, he lacks the range to play up the middle, and there are also questions about whether he's capable of sticking in right field long-term.

Last week, Nolasco went 6-for-12 with two home runs, three doubles, five RBI, one walk, and four strikeouts. It's a promising surge, but it's too soon to go overboard with the hype. A 38.7 percent strikeout rate in High-A is concerning, especially for someone who may rotate between left field and designated hitter over the long haul.



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




POPULAR FANTASY TOOLS

Expert Advice
Articles & Tools
Import Your Leagues
Draft Rankings
Draft Simulator
Enter League Settings
Compare Any Players
Rookies & Call-Ups
24x7 News and Alerts

REAL-TIME FANTASY NEWS

Merrill Kelly

"Optimistic" About Being Ready by Opening Day
Gabriel Moreno

Can Gabriel Moreno Put Together a Fully Healthy Season in 2026?
Mark Vientos

May Be Limited to Part-Time Role in New York
Kyler Murray

Likely to be Released
Noah Cameron

Can Noah Cameron Repeat His Breakout 2025 Season?
Justin Steele

"Full-Go" on Throwing, Still Eyeing May or June Return
Travis Etienne Jr.

Not Expected to be Franchise-Tagged
Aaron Jones Sr.

Vikings Planning to Release Aaron Jones Sr.?
Samuel Basallo

is Returning on Sunday
St. Louis Cardinals

Cardinals Sign Oliver Marmol to Two-Year Extension
Thomas White

is Diagnosed with Oblique Strain
Carmen Mlodzinski

to Compete for Starting Rotation Spot
Tyler Reddick

Could Make History at COTA
Shane Van Gisbergen

Shane van Gisbergen Still the Favorite at COTA
Christopher Bell

Will Be Tough to Beat at COTA
Jacob Melton

is Returning on Sunday
AJ Allmendinger

Could Contend at COTA
Connor Zilisch

Carries Plenty of Upside for DFS at COTA
Chase Elliott

May be A Strong Contender Again at COTA
Chris Buescher

Is Nothing But Consistent at Road Courses
Ross Chastain

May Be An Underrated Competitor for the Win at COTA
William Byron

Is William Byron a Viable DFS Option for COTA?
Carson Hocevar

Needs Clean Race at COTA
Nick Suzuki

Enjoys Three-Point Night Against Capitals
Rasmus Dahlin

Collects Three Points Saturday
Kyle Larson

Could be A Decent DFS Option for COTA Lineups
Joel Kiviranta

in Concussion Protocol
Joel Eriksson Ek

Available Sunday
Ryan Blaney

Could Ryan Blaney be A Sleeper DFS Option for All Formats for COTA?
Mark Scheifele

Expected to Play Sunday
Chase Briscoe

Should DFS Players Roster Chase Briscoe at COTA?
Adam Wilsby

Exits Early Versus Stars
Gage Goncalves

Hurt in Saturday's Loss
Russell Westbrook

Off Injury Report Sunday
Kawhi Leonard

Set to Play Against Pelicans
NASCAR

Bubba Wallace Is A Favorable Value Option for COTA DFS Lineups
Ty Gibbs

Could Ty Gibbs Be A Rosterable DFS Play for COTA?
Michael McDowell

Is Michael McDowell A Favorable DFS Option for COTA?
Donovan Mitchell

to Miss Third Straight Game
Joel Embiid

Sidelined Three Games with Oblique Injury
Cooper Flagg

Remains Sidelined Sunday
Darius Garland

Targeting Monday Debut with Clippers
Zion Williamson

Exits Early with Ankle Injury
Cale Makar

Scores Twice Versus Chicago
Connor McDavid

has a Three-Assist Game
Keyonte George

is Available to Play on Saturday
De'Anthony Melton

is Returning on Saturday
Draymond Green

is Available on Saturday
Keston Hiura

Exits After Getting Hit by Pitch
Leo De Vries

Exits Early on Saturday
Kyle Stowers

is Dealing with Minor Hamstring Strain
Cody Bellinger

Dealing With Back Injury
Corbin Carroll

Likely to be Ready for Opening Day
Vladislav Namestnikov

Out Week-to-Week
Nino Niederreiter

Recovering From Surgery
Colton Parayko

Doubtful for Sunday
Zach Benson

Activated From Injured Reserve
Anthony Cirelli

a Game-Time Decision Saturday
Roope Hintz

Remains Out Saturday
Andrei Kuzmenko

Out Week-to-Week After Meniscus Surgery
Starling Marte

Royals Agree With Starling Marte
Rafael Devers

Being Shut Down for 2-4 Days With Hamstring Tightness
Ronald Acuña Jr.

Ronald Acuna Jr. Hits Grand Slam in Grapefruit League Game
J.J. Wetherholt

JJ Wetherholt Homers for First Spring Hit
Bryce Miller

Shut Down for Five Days With Side Soreness
Spencer Strider

Diminished Velocity a Cause for Concern?
Alex Lyon

Picks Up Victory Against Former Club
Mikko Rantanen

Likely to Miss More Than Two Weeks
A.J. Brown

Patriots "Have Explored Trade Talks" Involving A.J. Brown
Deni Avdija

Likely to Miss Another Game
Dallas Mavericks

Tyus Jones Set to be Waived by Dallas
Phoenix Suns

Cole Anthony Parts Ways with Phoenix
Quenton Jackson

Earns Three-Year Deal with Pacers
Mason Plumlee

Staying with Spurs For Remainder Of Season
Devin Booker

Targeting Return Tuesday Or Thursday
Keegan Murray

Out at Least Two Weeks
Tyler Myers

Not Expected to Play Saturday
Luke Hughes

Could Return Saturday
Oskar Sundqvist

Available Saturday
Norman Powell

Considered Week-to-Week
Jabari Smith Jr.

to Miss Game Vs. Heat
Kristaps Porzingis

Questionable Vs. Lakers
Draymond Green

On Track to Play Saturday
Lone'er Kavanagh

Set For UFC Mexico City Main Event
Brandon Moreno

Looks To Bounce Back
David Martinez

Set For UFC Mexico City Co-Main Event
Marlon Vera

In Dire Need Of Victory
King Green

Looks To Win Back-To-Back Fights
Daniel Zellhuber

Aims To Snap Two-Fight Skid
Felipe Bunes

Looks To Get Back In The Win Column
Édgar Cháirez

Edgar Chairez A Favorite At UFC Mexico City
George Pickens

Cowboys Not Interested in Trading George Pickens
Ashton Jeanty

Not in Line for Workhorse Role in 2026?
Anthony Richardson Sr.

Colts Give Anthony Richardson Sr. Permission to Seek a Trade
Kyler Murray

Prefers to be Released
Derek Carr

"Strong Belief" That Derek Carr is "Very Serious" About Unretiring
Andy Dalton

Is Andy Dalton Available for a Trade?
Keith Mitchell

Making The Comfortable Return to PGA National
CFB

Chandler Morris Suing NCAA for Seventh Year of Eligibility
Chris Kirk

Searching for a Spark at Cognizant Classic
Brooks Koepka

Making Third PGA Tour Start at Cognizant Classic
Mackenzie Hughes

a Steady Option at Cognizant Classic
Seamus Power

Seeking More Green in Florida
PGA

Haotong Li Back From a Break as Florida Stretch Starts
Stephan Jaeger

Trying to Put Four Rounds Together in Florida
PGA

Nico Echavarria Again Attempting to Make the Weekend
Patrick Fishburn

Looking for a Spark at Cognizant Classic
Blades Brown

Set for Cognizant Classic Debut
Michael Thorbjornsen

Looking to Bounce Back at Cognizant Classic
Maxx Crosby

Raiders Expect Maxx Crosby to Return
Billy Horschel

Looks to Improve Season at Cognizant Classic
Kyle Pitts Sr.

Falcons Place Franchise Tag on Kyle Pitts Sr.
Joe Highsmith

Returns to Defend at Cognizant Classic
Quinshon Judkins

Out of Walking Boot, Will be Ready for Training Camp
Breece Hall

Jets Will Use Franchise Tag on Breece Hall if Extension isn't Reached
Joel Dahmen

Needs Better Consistency Heading Into The Florida Swing
Daniel Berger

Looks to Improve Putting as PGA Tour Begins Its Florida Swing
Kirk Cousins

Falcons Plan to Release Kirk Cousins
Zach Ertz

Plans to Return for 14th Season
Davis Thompson

Struggling to Find Birdies as Florida Looms
Tom Kim

Not Quite Cutting It in 2026
Nicolai Hojgaard

Wants to Build Momentum from Scottsdale
Christiaan Bezuidenhout

Returns After Extended Break for Florida Event
CFB

Gunner Rivers Follows His Father, Commits To North Carolina State
Will Zalatoris

Set to Make Tournament Debut at Cognizant Classic
Rasmus Hojgaard

Trending Up at the Cognizant Classic
RANKINGS
C
1B
2B
3B
SS
OF
SP
RP

RANKINGS

QB
RB
WR
TE
K
DEF