👉 TAP TO SAVE 30% WITH CODE NEW
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

#1 Expert Projections
Save 30% Now
Import Your Leagues
Top-Rated Accuracy
Draft Simulator
Enter League Settings
Compare Any Players
Rookies & Call-Ups
24x7 News and Alerts

Five Undervalued Fantasy Baseball Draft Targets for 2024

Ryan Mountcastle fantasy baseball rankings draft sleepers MLB injury news

Kev's five undervalued fantasy baseball draft sleepers and targets. These are potential sleepers, pickups, and trade targets for 2024 fantasy baseball.

With MLB's spring training coming to a close, we are rapidly approaching the regular season! Fantasy baseball drafts have been underway but carry on through opening weekend.

While nailing those top-end studs is what matters most, identifying sleepers and undervalued players is key to gaining an edge over your league mates and widening the margin for error throughout an arduous 162-game season. If you can correctly identify who to target, it might just lead you to the long-awaited title that’s eluded your grasp.

For all issues with this article, direct your concerns or complaints to @RotoSurgeon on X. With that said, here are five fantasy baseball sleepers heading into 2024.

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

 

2024 Fantasy Baseball Sleepers 

Hunter Brown, SP, Houston Astros

Hunter Brown was one of the unluckiest SPs of the 2023 MLB season. His ERA of 5.09 was fifth highest in the league among pitchers with at least 150 innings pitched while his WHIP was ninth highest. Luckily, we have access to peripheral stats such as xFIP and SIERA via websites like FanGraphs, which indicate something closer to Brown and other pitchers' true value.

Between Brown's 3.52 xFIP and 3.74 SIERA, we can see that his actual skills were not as bad as his ERA. Simultaneously, Brown had the highest home run per fly ball rate in 2023 along with the highest BABIP (tied with fellow unlucky SP Dylan Cease). Both metrics have some skills-based aspect to themselves, but on the whole, the yearly league average is what we should expect them to regress toward as luck is largely in play when HR/FB and BABIP are overpolarized to one end of the spectrum or another.

Brown was still valuable in 2023 despite the egregious ratio stats. He ranked top 30 in strikeouts with 178 and finished with 11 wins. Playing on the Astros (or any top team) has its perks as even on a bad day, Brown could accrue a win if he has at least 5.0 IP. Not only that, for those in Quality Start leagues, Brown pitched at least six innings in 12 of his 29 starts! The breakout could be massive for a pitcher of his talent.

 

Bryce Miller, SP, Seattle Mariners

Over the past few seasons, the Mariners have earned themselves the worthy title of "pitching factory." Between George Kirby and Logan Gilbert, two top-30 starters were ushered into the league and immediately established. Toward the second half of last season, Bryce Miller and Bryan Woo were the next crop of the Mariners' featured studs and did so well that the team sold off currently injured former Cy Young winner Robbie Ray for parts this offseason. (Bryan Woo was also a potential breakout candidate for 2024, but sadly he is dealing with elbow inflammation and will start the season on IL.)

Miller struggled against left-handed hitting last season with egregious splits in 2023.

vs. RHP:

74.2IP, .239 wOBA, 3.62 xFIP, 22.0% K-BB

vs. LHP:

56.2IP, .378 wOBA, 5.22 xFIP, 12.2% K-BB

His fastball is already one of the MLB's best and he dominated RHP last season. There is a baseline for Miller to grow and reports of his newly developed splitter could allow him to take that jump by mitigating damage against lefties. There is no guarantee Miller conquers lefties to the degree he does righties, but even so, given his relative success in 2023, even a small jump would be enough to break out as his 4.32 ERA and 1.14 WHIP were solid enough in fantasy.

 

Ryan Mountcastle, 1B, Baltimore Orioles

Ryan Mountcastle was one of my 2023 breakout candidates, but another unfortunate year of bad luck struck. Not to mention, Mountcastle was reportedly dealing with lingering light-headedness after his IL stint, which caused the baseball to look "pea-sized" while in the batter's box.

Mountcastle has underperformed his expected wOBA (via Statcast) significantly for two straight seasons.

2022

wOBA: .316/ xwOBA: .362

2023

wOBA: .333 / xwOBA: .356

Factors such as speed affect differentials in wOBA and xwOBA when players cannot leg out the basepaths; however, the Orioles recently adjusted the dimensions of their home park Camden Yards to become more pitcher friendly, and as a consequence, significantly increased the difficulty for right-handed bats.

Nevertheless, Mountcastle has 73rd percentile sprint speed. He should be capable of not only matching his xwOBA but surpassing it! The pendulum of his luck is due to regress, and in an offense as potent and even improving as Baltimore, he could finish as a top-five first baseman given the power he possesses.

 

Tyler O'Neill, OF, Boston Red Sox

Another year, another Tyler O'Neill hype piece online! The good news is that O'Neill has already broken out and he did so in one of the toughest home parks in baseball (St. Louis). O'Neill now plays in Fenway, baseball's second-best hitter's park.

The biggest question mark with O'Neill is not his five-tool skill set, but it is his ability to stay healthy. O'Neill already dealt with a minor calf issue in spring training but returned to the lineup soon after as all of his fantasy managers exhaled a sigh of relief. In 2023, O'Neill dealt with not only back and knee issues, but a team that was frustrated with him. There was a messy divorce between the Cardinals and O'Neill, but he is now free for a fresh start with his second MLB organization.

Should we expect 34 HRs and 15 SBs like O'Neill accrued in 2021 across 138 games? Probably not given that both his wOBA and xwOBA appear as aberrations relative to the rest of his career, but he could certainly become a must-roster fantasy piece after two unlucky hitting seasons in a row akin to the aforementioned Ryan Mountcastle.

 

Jake Fraley, OF, Cincinnati Reds

Jake "Rake" Fraley saw his 2023 fantasy breakout cut short after a toe fracture suffered in early August. He returned to play in September but the injury lingered and he wound up requiring surgery in October. Fraley returned from IL in September with 15 HRs and 19 SBs yet ended the season with just 15 HRs and 21 SBs despite adding 53 plate appearances to his season total. Luckily, Fraley enters the 2024 season at full strength despite dealing with a mild groin issue in the spring.

30 MLB players posted at least 15 HRs and 20 SBs in 2023 and Jake Fraley was one of them. While this accomplishment is not the most exclusive given the newly favorable rules for stolen bases, Fraley did so in just 380 plate appearances. His upside at full strength, even as a strong-side platoon bat, is immense; yet, he is undrafted in most standard fantasy baseball leagues.

The Reds offense is improving and arguably top 10 heading into 2024 and their home park in Cincinnati is one of MLB's best for hitters. Fraley will play most days of the week and potentially build upon his strong 2023 season.



Download Our Free News & Alerts Mobile App

Like what you see? Download our updated fantasy football app for iPhone and Android with 24x7 player news, injury alerts, rankings, starts/sits & more. All free!

More Fantasy Football Analysis




POPULAR FANTASY TOOLS

#1 Expert Projections
Save 30% Now
Import Your Leagues
Top-Rated Accuracy
Draft Simulator
Enter League Settings
Compare Any Players
Rookies & Call-Ups
24x7 News and Alerts

REAL-TIME FANTASY NEWS

CFB

Gunner Stockton Looking "Great" After Offseason Injury
CFB

Sam Leavitt Showing "Encouraging Signs" at LSU Practice
Hendon Hooker

Signs with the Titans
Kaleb Johnson

Given a Clean Slate with New Coaching Staff
DK Metcalf

Dynasty Outlook Murky with Quarterback Uncertainty?
Trey McBride

Is Trey McBride the TE1 in Dynasty Fantasy Football?
Mark Andrews

Faces Less Competition in Tight End Room
Wan'Dale Robinson

the Clear No. 1 Target in Tennessee?
Brock Purdy

Supporting Cast Gets an Upgrade for 2026
Jalen McMillan

Headed for a Bigger Role in 2026
Ashton Jeanty

Poised to Break Out with Improved Offense and Protection?
Justin Jefferson

Poised to Re-Emerge as an Elite Dynasty Wide Receiver in 2026
J.J. McCarthy

Dynasty Value is Fading Heading into 2026
NFL

Brenen Thompson May Struggle to Consistently Earn Targets in the NFL
Drake Maye

Can Drake Maye Overcome Questionable Supporting Cast in New England?
Garrett Wilson

Will Garrett Wilson Have a More Stable Environment Around Him in New York Going Forward?
NFL

Omar Cooper Jr.'s Stock is Rising as Draft Day Approaches
J.J. Spaun

Needs the Putter to Cooperate in San Antonio
Thorbjorn Olesen

Trending Up in San Antonio
Denny McCarthy

Carrying Momentum into San Antonio
Matt Grzelcyk

Unavailable for Reminder of Season
Artyom Levshunov

Ruled Out for Rest of Season
Mathieu Olivier

to Miss Couple of Weeks
Evan Rodrigues

to Have Season-Ending Surgery
Sam Reinhart

Won't Return This Season
Carter Yakemchuk

Injured in Tuesday's Loss
Aaron Ekblad

Hand Injury "Doesn't Look Good"
Cameron Johnson

Available Against Jazz
Aaron Gordon

Likely to Play Wednesday Night
Malik Monk

Suiting Up Wednesday
DeMar DeRozan

Cleared to Face Raptors
Andrew Wiggins

Questionable Against Celtics
Norman Powell

Won't Play Wednesday
Danny Wolf

Without Timeline for Return
Jose Fernandez

Launches Two Home Runs in Historic MLB Debut
Chase DeLauter

Exits Tuesday's Game with Foot Injury, X-Rays Come Back Negative
Odell Beckham Jr.

Meets with John Harbaugh About Giants Reunion
Chris Kirk

Has Course History on His Side in San Antonio
Billy Horschel

a Volatile Option at the Valero Texas Open
Joe Highsmith

Still Searching for Form in San Antonio
Christiaan Bezuidenhout

Looks to Find Form at the Valero Texas Open
Dalton Kincaid

Load Management a Possibility for Dalton Kincaid
J.K. Dobbins

is Fully Healthy for 2026
Jauan Jennings

49ers Acknowledge Jauan Jennings Won't Return
LeBron James

Set to Play in Cleveland Matchup
Jayson Tatum

Cleared to Play Wednesday
Neemias Queta

Returns Against Miami
De'Anthony Melton

Ruled Out Against Spurs
Kristaps Porzingis

Ruled Out Wednesday
Pascal Siakam

Expected to Suit Up Wednesday
Andrew Nembhard

Sitting Out Wednesday
Olivier-Maxence Prosper

Off Injury Report Wednesday
Ty Jerome

to Miss Fifth Straight Game
Caris LeVert

Available Tuesday Against Raptors
Miles McBride

to Suit up on Tuesday
Collin Murray-Boyles

Cleared to Play Tuesday
Marcus Sasser

is Available on Tuesday
Brandon Ingram

Returns Vs. Detroit
Seiya Suzuki

to Begin a Rehab Assignment Soon
Simon Holmstrom

Misses Tuesday's Action
Alexandre Carrier

Out 2-4 Weeks With Upper-Body Injury
Jordan Spieth

a Horse for Course History at TPC San Antonio
Mason Lohrei

Misses Second Consecutive Game Tuesday
Tyler Myers

Unavailable Against Bruins
Robert MacIntyre

Has One Flaw to Overcome at Valero Texas Open to be a Must-Play
Michael Bunting

to Sit Out Tuesday's Game
Maverick McNealy

In Exceptional Form This Season
Michael Thorbjornsen

Playing Well But Still Searching For A Win
Hideki Matsuyama

Playing Well Heading to the Valero Texas Open
Si Woo Kim

Heads to Valero Texas Open For Final Tune-Up Before Masters
Nikita Kucherov

a Game-Time Decision Tuesday
Evgeni Malkin

Ready for Action Tuesday
Sam Bennett

Rejoins Panthers Lineup Tuesday
Cody Ponce

Diagnosed With ACL Sprain, to Miss "Significant Time"
Tank Dell

Uncertain for OTAs, But Expected to Play in 2026
Alvin Kamara

Saints Still Want to Address Alvin Kamara's Contract
Collin Morikawa

Withdraws From Valero Texas Open
PGA

Stephan Jaegar Still Looking For Consistency at Valero Texas Open
Nicolai Hojgaard

is Red-Hot Coming to TPC San Antonio
Tony Finau

a Risky Proposition at Valero Texas Open
Ludvig Aberg

Looks to Shake Off Collapse at Valero Texas Open
Jacob deGrom

Cleared for Season Debut on Tuesday
Colt Emerson

Signs an Eight-Year Extension with Mariners
William Nylander

Records Four Points Against Ducks
Macklin Celebrini

Becomes Sixth Teenager With 100-Point Season
Jaden Schwartz

Could Return Tuesday
Jordan Greenway

Available Tuesday
Jake Sanderson

Remains Out Tuesday
Cutter Gauthier

Exits Early Against Maple Leafs
Patrick Rodgers

Needs to Make More Birdies in San Antonio
Sepp Straka

Seeks Opportunity in San Antonio This Weekend
Nick Taylor

Could Again Struggle at the Valero Texas Open
Jose Altuve

Tallies Four Hits, Two Homers in Big Night
Miguel Vargas

Hits Grand Slam, Drives in Six in Win Over Miami
Tanner Bibee

to Start on Tuesday Against Dodgers
Chase Elliott

Takes Advantage of Pit Strategies for Second Career Martinsville Win
Denny Hamlin

Dominates but Finishes Second at Martinsville
Joey Logano

Bounces Back with Third-Place Finish at Martinsville
Ty Gibbs

Gains his Fourth Top-Five Finish of the Season at Martinsville
William Byron

Scores Another Top-Five Finish at Martinsville
Joe Pyfer

Extends His Winning Streak
Israel Adesanya

Loses Fourth Consecutive Fight
Maycee Barber

Suffers Her First Knockout Loss
Alexa Grasso

Scores Highlight-Reel Knockout
Niko Price

Retires After UFC Seattle Loss
Michael Chiesa

Victorious In His Retirement Fight
Julian Erosa

Suffers First-Round Knockout Loss
Lerryan Douglas

Scores First-Round Knockout Win In His UFC Debut
Alex Bregman

Clobbers First Two Homers in Sunday's Loss at Wrigley
Yandy Díaz

Yandy Diaz Records Five Hits, Drives in Four in Win Over Cardinals
Kyle Larson

Is Likely to Pay Off for DFS at Martinsville
Christopher Bell

Could Have Another Top-10 Performance At Martinsville
William Byron

Is A Threat to Win Again at Martinsville
Chase Elliott

is A Solid DFS Option for Martinsville Lineups
Chase Briscoe

has Plenty of Upside for DFS Lineups at Martinsville
Carlos Estévez

Carlos Estevez Unlikely to See High-Leverage Opportunities in Near Future
Jacob deGrom

Feels "Much Better," Hopeful he Can Start This Week
Ty Gibbs

Should Fantasy Managers Roster Ty Gibbs at Martinsville?
Ryan Preece

Is A Solid DFS Option for Martinsville Lineups
Josh Berry

Could Josh Berry Pay Off for Tournament DFS Lineups At Martinsville?
Carson Hocevar

May be Too Inconsistent to Start in Martinsville DFS Lineups
Austin Cindric

Is Austin Cindric Worth Rostering for DFS At Martinsville?
Denny Hamlin

the Favorite to Win at Martinsville
Ryan Blaney

Should Contend at Martinsville
Tyler Reddick

Should Come Back Down to Earth at Martinsville
Joey Logano

Will Be Strong at Martinsville
NASCAR

Bubba Wallace Looking to Rebound at Martinsville
Shane Van Gisbergen

Shane van Gisbergen Showing Progress, Qualifies Fifth at Martinsville
Dylan Cease

Fans 12 in Blue Jays Debut on Saturday
Andrew Vaughn

Needs Hand Surgery, Expected to be Out 4-6 Weeks
Jacob deGrom

"Confident" he Will Make his Next Start
Jacob deGrom

Scratched From Saturday's Start Due to Neck Stiffness
Jeferson Quero

Brewers Calling Up Catching Prospect Jeferson Quero
Deyvison De Los Santos

Marlins Promote Deyvison De Los Santos to Major Leagues
Shea Langeliers

Hits Two Home Runs on Opening Day
Kevin Gausman

Picks Up No-Decision But Strikes Out 11 on Opening Day
Joe Pyfer

Set For UFC Seattle Main Event
Israel Adesanya

Returns At UFC Seattle
Maycee Barber

Looks To Extend Her Win Streak To Eight
Alexa Grasso

Looks To Get Back In The Win Column
Niko Price

In Dire Need Of Victory
Michael Chiesa

Set For Retirement Fight
Lerryan Douglas

Set For His UFC Debut
Julian Erosa

Looks To Bounce Back
RANKINGS
C
1B
2B
3B
SS
OF
SP
RP

RANKINGS

QB
RB
WR
TE
K
DEF