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
Daily Stats & Leaders
All Pitcher Matchups
Compare Any Players
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
Daily Stats & Leaders
All Pitcher Matchups
Compare Any Players
Compare Any Players
Rookies & Call-Ups
24x7 News and Alerts

REAL-TIME FANTASY NEWS

Brandon Sproat

Dealt to Brewers in Four-Player Trade
Jett Williams

Brewers Acquire Jett Williams From Mets
Freddy Peralta

Mets Acquire Freddy Peralta From Brewers
Freddy Peralta

Mets in Serious Talks to Acquire Freddy Peralta From Brewers
Jonas Valančiūnas

Jonas Valanciunas Questionable Versus the Wizards
Seth Jones

to Miss Olympics
Christian Braun

Remains Sidelined on Thursday
Martin Pospisil

Makes Season Debut Wednesday
Jalen Suggs

Questionable Versus Charlotte
Teddy Blueger

Available Wednesday Night
Tom Wilson

Comes Off Injured Reserve
Luke Hughes

Devils Place Luke Hughes on Long-Term Injured Reserve
Valeri Nichushkin

Returns to Action Wednesday
Kris Letang

a Game-Time Call Wednesday
Caris LeVert

Sidelined Wednesday
Cade Cunningham

Unavailable on Wednesday
Tre Mann

Available Versus Cavs
Ja'Kobe Walter

Out of Action Again on Wednesday
RJ Barrett

Remains Sidelined on Wednesday
Collin Murray-Boyles

Ruled Out on Wednesday
Domantas Sabonis

Sidelined Wednesday
Kyle Tucker

Expected to Bat Second or Third in Dodgers' Lineup
CFB

Justin Joly Bringing Strong Resume of Production to NFL
Brandon Aiyuk

has "Played his Last Snap as a Niner"
Cody Bellinger

Signs Five-Year, $162.5 Million Contract With Yankees
Adam Scott

Looks to Overcome Putting Woes at American Express
Billy Horschel

Looking to Rebound at The American Express
Josh Allen

Might Need Foot Surgery
Russell Henley

Looks to Build on Strong Start at The American Express
Jason Day

Looking to Start 2026 Strong at The American Express
Wyndham Clark

Looking to Regain Form at The American Express
Sam Burns

Looks to Continue Success at The American Express
Akshay Bhatia

Looking to Flip the Script at The American Express
Christiaan Bezuidenhout

Looking to Build on Strong Fall in Season Debut
Kurt Kitayama

Hopes To Continue Strong Start to 2026 Season at American Express
CFB

Princewill Umanmielen Expected to Sign with LSU
Scottie Scheffler

Returns To American Express After Missing Last Year's Edition
Robert MacIntyre

Keeps Momentum Rolling Heading Into American Express
Brian Harman

Can Challenge at American Express if His Putter Stays Hot
Ben Griffin

Outstanding Form Continues Heading Into American Express
Matt Fitzpatrick

Continues Playing Well Following Outstanding Finish to 2025 Season
Patrick Cantlay

Looks to Get a Jump Start on His 2026 Season
Blades Brown

Set to Make First PGA Tour Appearance of 2026
Kevin Roy

Has Some Confidence Heading to Southern California
Josh Morrissey

Has Three-Point Night Against Blues
Min Woo Lee

Poised to Make Bigger Impact in 2026
Miro Heiskanen

Records Three Helpers Tuesday
Brandon Hagel

Stays Hot Tuesday Night
Ryan O'Reilly

Extends Scoring Streak With Three-Point Effort
Max Homa

Needs a Better Start for 2026
Konsta Helenius

Bags Three Points In Tuesday's Win
Tony Finau

Trying to Reverse Disturbing Trend
Anthony Cirelli

Injured Versus Sharks
Cam Davis

Aims for More Accuracy at American Express
Darcy Kuemper

Hurt on Tuesday Night
Isaiah Hartenstein

Unavailable Against Bucks
Myles Turner

Uncertain for Wednesday Night
Luisangel Acuña

Luisangel Acuna Sent to White Sox in Trade
Kevin Porter Jr.

Questionable Wednesday
Luis Robert Jr.

Mets Acquire Luis Robert Jr. from White Sox
Cam Thomas

Rejoins Nets Lineup for Meeting With Knicks
Jaylen Brown

Considered Probable Wednesday
Steven Adams

Out Indefinitely With Ankle Sprain
Deandre Ayton

Exits Early With Eye Injury
Los Angeles Chargers

Mike McDaniel Expected to Become Chargers Offensive Coordinator
Kel'el Ware

Unavailable on Tuesday
Mikko Rantanen

Out Tuesday
Andrew Peeke

Returns to Action Tuesday
Rodrigo Abols

Expected to Miss Several Months
Luke Hughes

Out Tuesday
Jonas Brodin

Will Miss Olympics
Carlos Beltran

Andruw Jones Elected to Baseball Hall of Fame
Alexandre Texier

Won't Play Tuesday
Kirby Dach

Rejoins Canadiens Lineup
Mark Williams

Active On Tuesday
Brice Sensabaugh

Unavailable Tuesday
De'Anthony Melton

In for Back End of Back-To-Back
CFB

Alberto Mendoza Expected to Land at Georgia Tech
Malik Nabers

Giants Hope Malik Nabers Will be Back for Start of Training Camp
CFB

Duke Suing Quarterback Darian Mensah
Cam Skattebo

Should be Ready by OTAs
George Kittle

Expects to Return "Well Before November"
CFB

Alberto Mendoza Entering Transfer Portal
Mookie Betts

Plans to Retire at the End of his Current Contract
Tennessee Titans

Titans Set to Hire Robert Saleh as Next Head Coach
Miami Dolphins

Dolphins Expected to Hire Jeff Hafley as Next Head Coach
Zach Charbonnet

has Torn ACL
Zach Charbonnet

Needs Knee Surgery, Out for Rest of Playoffs
Tennessee Titans

Mike McCarthy a Finalist for Titans Head-Coaching Job?
Colston Loveland

Suffers Concussion in Divisional Round Loss
Kyren Williams

Scores Two Touchdowns in Divisional Round Win
Buffalo Bills

Bills Fire Head Coach Sean McDermott
Rhamondre Stevenson

Returns in Sunday's AFC Divisional Round Game
Ha-Seong Kim

has Finger Surgery, Out 4-5 Months
Rhamondre Stevenson

Questionable to Return on Sunday With Eye Injury
Woody Marks

Returns Following Brief Exit on Sunday
Dalton Schultz

Won't Return in Sunday's AFC Divisional Round Game
Aaron Rodgers

Steelers Open to Aaron Rodgers Returning in 2026?
Jarrett Stidham

to Start AFC Championship Game
Zach Charbonnet

Questionable to Return Against 49ers
CFB

Darian Mensah Entering Transfer Portal
J.T. Realmuto

Signs Three-Year Deal to Return to Phillies
Bo Bichette

Agrees to Three-Year Contract With Mets
CFB

Weber State Signs former Ohio State, Cal Quarterback Devin Brown
Bo Bichette

Phillies the "Overwhelming" Favorite to Sign Bo Bichette
Josh Lowe

Angels Acquire Josh Lowe in Three-Team Trade

RANKINGS

QB
RB
WR
TE
K
DEF
RANKINGS
C
1B
2B
3B
SS
OF
SP
RP