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

Rhamondre Stevenson

Returns in Sunday's AFC Divisional Round Game
Josh Norris

Out Week-to-Week
Dylan Holloway

Set to Return Sunday
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?
Kawhi Leonard

to Miss Final Two Games of Road Trip
Jarrett Stidham

to Start AFC Championship Game
Zach Charbonnet

Questionable to Return Against 49ers
Atlanta Falcons

Falcons Hiring Kevin Stefanski as Head Coach
Jalen Williams

Ruled Out for Remainder of Meeting with Miami
Naz Reid

Won't Return on Saturday Night
Bo Nix

Suffers Broken Bone in Ankle, Done for Playoffs
Jalen Suggs

Out on Sunday Against Grizzlies
Santi Aldama

Questionable for Sunday's Matchup
Ja Morant

Listed as Probable for Sunday
Tari Eason

Listed as Questionable for Sunday
Herbert Jones

Ruled Out for Sunday
Rudy Gobert

Won't Play Saturday
Paul Reed

Available Saturday
Stephon Castle

is Available on Saturday
Ausar Thompson

Good to Go Against Pacers
Cade Cunningham

Cleared for Saturday's Action
Ziaire Williams

Still Out Sunday
Drake Powell

Won't Play Against Bulls
Green Bay Packers

Packers Sign Head Coach Matt LaFleur to Multi-Year Extension
Josh Giddey

Holds Doubtful Tag for Sunday's Game
Michael Porter Jr.

to Be Rested Sunday
Patrick Williams

Tagged as Questionable for Sunday
Ricky Pearsall

Active for Divisional Round
Sam Darnold

Officially Active for Saturday's Divisional Round Game vs. 49ers
Nikola Jović

Nikola Jovic Active Saturday
Isaiah Jackson

Will Play on Saturday
Tyler Herro

Out Saturday Night
William Carrier

Misses Fourth Consecutive Game
Shayne Gostisbehere

Remains Out Saturday
Jake Evans

Available Saturday
Teuvo Teravainen

Misses Second Straight Game
William Nylander

Out Against Jets
Pat Bryant

Won't Return on Saturday, Ruled Out with a Concussion
Tom Wilson

Could Be an Option Saturday
Leo Carlsson

Out for 3-5 Weeks After Thigh Procedure
Leon Draisaitl

Takes Leave of Absence
New York Giants

John Harbaugh, Giants Finalize Five-Year Deal
Aaron Rodgers

Not Expected to Return to Steelers in 2026
Atlanta Falcons

Kevin Stefanski the Favorite for Falcons Head-Coaching Job
Matt Boldy

Placed on Injured Reserve
Ross Colton

Good to Go Friday
Will Smith

Returns Against Red Wings
Shayne Gostisbehere

Out Friday
Brad Marchand

Remains Out Friday
Joel Armia

Returns From Five-Game Absence
Chris Kreider

a Game-Time Call Friday
Troy Terry

Cutter Gauthier Available Friday
Leo Carlsson

Sits Out Second Consecutive Game
CFB

Darian Mensah Entering Transfer Portal
Sam Darnold

Seahawks "Optimistic" That Sam Darnold Will Play on Saturday
Nico Collins

Officially Ruled Out for Divisional Round
Rome Odunze

Questionable for Divisional Round
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
Mark Scheifele

Leads Jets to Victory Thursday
Tage Thompson

Records Season-High Five Points Thursday
Josh Lowe

Angels Acquire Josh Lowe in Three-Team Trade
Kyle Tucker

Signs Four-Year Contract With Dodgers
Ricky Pearsall

Questionable to Play on Saturday Night
Sam Darnold

Questionable With Oblique Injury, Expected to Play
Clayton Kershaw

to Pitch for Team USA in World Baseball Classic
CFB

Auburn, Ohio State the Lead Suitors for Kyle Parker
CFB

Oregon QB Transfer Bryson Beaver Linked to Georgia, Kentucky
CFB

Jake Merklinger Commits to UConn
Ben Griffin

Looks To Stay Hot In 2026
Ranger Suárez

Ranger Suarez Agrees to Five-Year Deal With Red Sox
CFB

Dante Moore Not Entering 2026 NFL Draft, Will Return to Oregon
CFB

FBS Coaches Unanimously Vote to Expand Redshirt Eligibility to Nine Games
CFB

Ohio State Transfer Mylan Graham Signs with Notre Dame
CFB

Caden Durham Withdraws from Transfer Portal, Will Stay at LSU
Jordan Spieth

Perhaps the Most Intriguing Player at Sony Open
Aaron Rai

Looking For Putting Confidence at Waialae Country Club
Collin Morikawa

Isn't The Safe Play He Used to Be Ahead of Sony Open
Kurt Kitayama

Needs His Putting to Turn Around For Success at Year's First Event
Ryan Weathers

Yankees Add Rotation Depth, Acquire Ryan Weathers in Four-Player Deal
CFB

Georgia Tech the Favorite to Land Justice Haynes?
Nolan Arenado

Cardinals Trade Nolan Arenado to Diamondbacks
Tom Kim

Desperately Needs a Solid Week at Sony Open
Billy Horschel

Hoping For a Fast Start to New Season at Sony Open
Corey Conners

Looks to Have a Return to Form in 2026
PGA

Chris Gotterup a Decent Play at Sony Open
Gary Woodland

Could Prosper at the Sony Open
Keith Mitchell

Unlikely to Contend at Sony Open
Robert MacIntyre

Looking for a Good Performance at the Sony Open
Michael Kim

Hopes to Start Sony Open Better This Week
Tom Hoge

Tries to Erase Poor 2025 Second Half in Hawaii
Brian Harman

Seeks Fresh Start in Hawaii
Eric Cole

Looks to Last Year for Success at Sony Open
Daniel Berger

Starts Off 2026 at Sony Open
Kyle Tucker

Mets Meet With Kyle Tucker

RANKINGS

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