👉 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

10 Deeper Prospect Sleepers for Dynasty Baseball Leagues

Marc Hulet identifies 10 deeper MLB prospect sleepers that could see their values spike significantly during the 2020 baseball season and in dynasty leagues.

We are inching closer and closer to Opening Day for the 2020 MLB season. That means that the Minor League season is also just around the corner. With that comes exciting new breakout prospects, as they rise up from both likely, and unlikely, places.

In the past few years, I’ve recommended a number of key pop-up prospects. Back at the end of 2017, I suggested that a little-known Yankees prospect named Jonathan Loaisiga deserved attention. In the spring of '19, I pointed to Yoendrys Gomez as a player to monitor. He’s now ranked among the Yankees' top 8-12 prospects in a number of different prospect publications. In the middle of '18, I ranked Julio Rodriguez as the Mariners’ fifth-best prospect, and then followed that up with a detailed explanation in April '19 that, “It was time to get excited about Julio Rodriguez.” In July '17, when he was still a Cardinals’ prospect, I first pointed to Zac Gallen as a future big-league contributor.

So, who can we uncover this spring? Today, we’re going to look at 10 deep sleeper prospects in Dynasty Leagues that shouldn’t be rostered just yet, but have a chance to find themselves on your rosters at year’s end.

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

 

Brandon Howlett (3B, BOS)

Howlett is a raw prospect. He spent the 2019 season in Class A ball at the age of 19 and needed a solid .337 BABIP to help him hit .231. The strikeout raw was also sky-high at 31% -- so why am I keeping an eye on him? In his first two seasons, Howlett has produced line-drive rates of more than 25%.

It’s rare to see that kind of consistent hard-hitting among such a young, inexperienced player. And along with the developing pop comes a strong willingness to take a free pass. His walk rate is close to 13% at this point in his career. He was hitting pretty well during his first taste of full-season ball in '19 before appearing to tire in July and August.

 

Brayan Rocchio (SS, CLE)

I thought 2019 would be Rocchio’s big breakout season, but he merely held his own in the New York-Penn League at the age of 18 while predominantly playing against 21- and 22-year-old former college players. He struggled early but managed to produce at a slightly-above-average rate with a 107 wRC+. Rocchio really turned things on in August and hit .283/.349/.414 with six steals in seven attempts over 25 games.

He may never be a huge home run hitter, but the switch-hitting shortstop has the skill to slug 15 home runs, steal 20 or more bases and hit .300. He should get his first taste of full-season ball in 2020 and has looked good so far in Cleveland’s big league camp while filling in for the Major League hitters (3-for-6 with a home run).

 

Bryant Packard (OF, DET) 

I personally thought Packard would be a decent late second-round or third-round Draft pick in 2019 out of East Carolina University. But he slipped to the Tigers in the fifth round, likely over concerns about his modest defensive skills. He hit .358 with a .994 OPS in his junior year of college after producing outstanding numbers in his sophomore season, too.

In his pro debut, Packard stung the ball during his first two stops in the lower levels of the Minors with a line-drive rate of more than 30%. At 6-foot-3 and 200 pounds, he has excellent size and just needs to make swing adjustments to get balls into the air more consistently. If he does that, the left-handed power hitter could really take off.

 

Edward Olivares (OF, SD)

Olivares has been the victim of the Padres’ strong organizational outfield depth. Last year in Double-A, he produced a 123 wRC+ as a 23-year-old. He also has excellent speed and nabbed 35 stolen bases in 45 tries, one year after going 21-for-29 at Class A Advanced.

Olivares also has the potential to develop into a 20-20 hitter after hitting double-digit home runs over the past three seasons and gradually hitting more balls in the air. He hit a career-high 18 home runs in 2019, along with a 25.5% line-drive rate.

 

Davis Wendzel (3B, TEX)

I really enjoyed what the Rangers did early in the 2019 Draft, as they nabbed two of my three favorite college third basemen in Josh Jung and Wendzel. The latter prospect hit well in all three seasons at Baylor University but really broke out in his junior year with a 1.094 OPS. He hit just eight home runs, but also saw 19 of his 65 hits go for doubles.

There’s power in the bat and some swing adjustments could help him tap into it. Wendzel showed an excellent eye at the plate during his college career and, although he appeared in just seven games after signing, he produced a BB-K rate of 5-6. He’s not the flashiest player, but this third baseman could develop into a well-rounded contributor in multiple categories.

 

Otto Lopez (IF/OF, TOR)

Lopez has been criminally overlooked during the past year or two. He spent the 2019 season in Class A where he hit .324 as a 20-year-old. His production has surpassed 130 wRC+ during the past two seasons, despite being young for the leagues at each stop. He likely gets passed over for more attention because he’s not a power hitter. His game is geared toward putting bat-to-ball and using his speed. He struck out less than 13% of the time in 2019, but also walked just 6.9% of the time.

Lopez has good speed but is still learning to run the bases effectively; he was nabbed 15 times in 35 attempts. Although he’s not the biggest player, he has strong wrists and forearms and could eventually be good for 30+ doubles and 10-12 home runs. Along with his natural hitting ability and speed, Lopez has played multiple positions and thar versatility is quite valuable in fantasy baseball. He’s spent time at second and third base, shortstop, and all three outfield spots.

 

T.J. Sikkema (SP, NYY)

Sikkema was one of my favorite college pitchers available in the 2019 Draft as a potential late first-round or second-round pick -- the Yankees nabbed him 38th overall. He had an excellent pro debut, although he was kept to just four games. In that small sample size, Sikkema produced a K-BB of 13-1 with six hits allowed in 10.2 innings, after striking out 101 college batters in 88.2 innings.

He could easily jump to Class A Advanced in 2020 with his advanced pitchability from the left side. He’s undersized, but is difficult to hit because of his unconventional delivery and potential for three average-or-better offerings. Sikkema’s lack of size could make him prone to home runs if he struggles to get a solid downward plane on his offerings. He may end up as more of a No. 4 starter, but he has the potential to eventually offer strikeouts and wins.

 

Isaiah Campbell (SP, SEA)

Another pitcher I liked a lot from the early rounds of the 2019 Draft, Campbell was selected 76th overall by the Mariners. That selection could be a steal. He’s far more physical than Sikkema (above) at 6-foot-4 and 225 pounds. I give a slight edge to the Yankees’ development system over the Mariners', but Campbell has the ingredients to be a No. 3 starter.

He throws in the mid-90s with three secondary offerings and good control (22 walks in 118.1 college innings in '19). His height helps him get good downward plane on the ball, which in turn helps generate ground ball outs. If he shows a reliable strikeout pitch, then Campbell could be a quick mover through the system.

 

Dany Jimenez (RP, SF)

Jimenez is the rare Rule 5 Draft pick that has legitimate redraft and dynasty value. He was 25 years old at Double-A in 2019 and might look like a late-developer, but he wasn’t signed out of the Dominican Republic until he was almost 21 years old.

He then spent three years in Rookie Season ball. Last season split between Class A Advanced and Double-A, the hard-throwing right-hander struck out 93 batters with 21 walks in 59 innings. If he can find the plate consistently, Jimenez’s mid-90s fastball and promising curveball give him high-leverage potential.

 

Chris Vallimont (SP, MIN)

I was a fan of Vallimont when he was in the Marlins' system and I became even more endeared with him after he moved to the Twins’ superior development system. Between two organizations and three teams in 2019, the 6-foot-5 right-hander struck out 150 batters in 127.2 innings. Despite a fly ball heavy approach, Vallimont allowed just seven home runs.

Moving forward, he needs to find a third reliable pitch to go with his fastball and slider, while also showing improved control -- something that the Twins’ development staff has been successful with in the past. The club absolutely pulled one over on the Marlins in getting him during the Lewin Diaz/Sergio Romo trade last summer.

More Fantasy Baseball 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

Jacob deGrom

Scratched from Saturday Start Due to Neck Stiffness
Jeferson Quero

Brewers Calling Up Catching Prospect Jeferson Quero
Josh Allen

Still the Top Dog at QB in Fantasy
Jared Goff

Should Have Safe Floor as QB1 Again Under New Offensive Coordinator
Jacoby Brissett

Will Jacoby Brissett be on the Streaming Radar Again in 2026?
NFL

Kaytron Allen Should Attract Plenty of Interest in 2026 NFL Draft
NFL

Makai Lemon a Polarizing Receiver Prospect Heading into This Year's Draft
David Pastrnak

Riding 11-Game Point Streak
John Gibson

Gets Back on Track Friday
J.T. Miller

Bags Three Points Against Blackhawks
Tage Thompson

Picks Up 400th Career Point
Patrick Kane

Collects Two Points in Friday's Win
Nick Lardis

Pots Another Goal Friday Night
Shayne Gostisbehere

Could Be an Option Saturday
Nique Clifford

Could Return Saturday
Marcus Sasser

Probable Saturday
Caris LeVert

on Track to Return Saturday
Deyvison De Los Santos

Marlins Promote Deyvison De Los Santos to Major Leagues
Duncan Robinson

Listed as Questionable for Saturday
Ayo Dosunmu

Questionable to Play Saturday
Myles Turner

Iffy for Saturday
Kyle Kuzma

Questionable Saturday
Moritz Seider

Assists on Two Goals Against the Sabres
Shea Langeliers

Hits Two Home Runs on Opening Day
Kevin Gausman

Picks Up No-Decision But Strikes Out 11 on Opening Day
Mac Jones

Boosts his Dynasty Stock With Solid First Year in San Fran
Alex DeBrincat

Picks Up Three Points Versus Buffalo
Bobby Portis

May Miss Another Game Saturday
Tez Johnson

Could be Buried on the Depth Chart Again in Sophomore Season
Kevin Porter Jr.

Unavailable Against Spurs
Ka'imi Fairbairn

One of the NFL's Best Kickers Heading into His 10th Season
De'Aaron Fox

to Return to Action Saturday
Isaiah Jackson

Exits Early Friday
Kelly Oubre Jr.

Ready to Return Saturday
Michael Penix Jr.

Falcons Think Michael Penix Jr. Will be Healthy "At Some Point" in Training Camp
Al Horford

to Be Re-Evaluated in One Week
Vít Krejčí

Vit Krejci Remains Sidelined Friday
Robert Williams III

Will Suit Up Friday
Khris Middleton

Sits Out Friday's Game
Tre Johnson

Back From Three-Game Absence Friday
Isiah Pacheco

Can Isiah Pacheco Bounce Back in RB2 Role in Detroit?
Jarace Walker

Won't Return Friday
Tristan Vukcevic

Active Friday Night
Tanner Bibee

Day-to-Day, Could Make his Next Start
Alexandre Sarr

Returns to Action Friday
Ausar Thompson

Questionable Against Minnesota
Nnamdi Madubuike

Optimism That Nnamdi Madubuike Will Return From Neck Injury
Dylan Garand

Starts Friday
Noah Ostlund

Won't Play Friday
Connor Zary

Returns to Practice
Samuel Honzek

Won't Return This Season
Damon Severson

Labeled Week-to-Week
Sam Steel

Leaves Road Trip Due to Injury
Mikko Rantanen

Could Return Saturday
NFL

Jordyn Tyson to Hold A Workout for Teams in April
New York Jets

Jets Unlikely to Draft Ty Simpson in the First Round?
Shane Baz

Orioles Agree to Five-Year Extension
Jeremy Peña

Jeremy Pena Making Season Debut on Friday Against Angels
Tiger Woods

Involved In Rollover Car Crash
Bhayshul Tuten

Remains a Clear Breakout Candidate Heading into 2026
NFL

Can Jonah Coleman Develop into a Starting NFL Running Back?
Rico Dowdle

Remains Likely to Split Carries in Pittsburgh
NFL

Can KC Concepcion Be a Dynamic Playmaker in the NFL?
Rashid Shaheed

Is Rashid Shaheed Limited to a Downfield Role in Seattle?
Marcus Mariota

Remains an Injury Away from Playing Time in Washington
Najee Harris

to Meet With Raiders Next Thursday
Damar Hamlin

Bills Re-Sign Safety Damar Hamlin to One-Year Deal
Tanner Bibee

Shoulder Issue Not Considered Serious
Barrett Hayton

Out Week-to-Week
Tony DeAngelo

to Miss 1-2 Weeks
Sam Steel

Makes Early Exit Against Islanders
Damon Severson

Exits With Upper-Body Injury Thursday
Joe Pyfer

Set For UFC Seattle Main Event
Yaroslav Askarov

Suffers New Injury Blow
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
Dominic Canzone

a Top Pickup After Two-Homer Game
Niko Price

In Dire Need Of Victory
Michael Chiesa

Set For Retirement Fight
Chase DeLauter

Launches Two Home Runs, Emerges as Top Waiver-Wire Target
Lerryan Douglas

Set For His UFC Debut
Julian Erosa

Looks To Bounce Back
Tanner Bibee

Leaves Opening Day Start Early With Shoulder Inflammation
Cristopher Sánchez

Cristopher Sanchez Makes a Statement on Opening Day With 10 Strikeouts
Kevin McGonigle

has Four Hits in Impressive MLB Debut
Nico Hoerner

Cubs Agree to Six-Year Deal With Nico Hoerner
Jacob Misiorowski

Shows Off his High-Strikeout Upside in Opening Day Win
Paul Skenes

Greeted Harshly by Mets on Opening Day
Brandon Lowe

Hits Two Home Runs on Opening Day
Ketel Marte

Active, Leading Off on Opening Day
Kevin McGonigle

Batting Sixth in MLB Debut
Jeremy Peña

Jeremy Pena Not in the Lineup on Opening Day
Ryan Fox

a High-Upside Value in Houston
Marco Penge

a Boom-or-Bust Option in Houston
Aaron Rai

Looks to Bounce Back in Houston
Jason Day

a Volatile Option at the Texas Children's Houston Open
Harris English

Eyes a Bounce-Back at the Texas Children's Houston Open
Ben Griffin

Looks for Turnaround at the Texas Children's Houston Open
Rickie Fowler

Brings Strong Form Into Texas Children's Houston Open
Ryan Gerard

Can Continue Rolling at Texas Children's Houston Open
Pierceson Coody

Bounces Back at Valspar Championship
Rasmus Hojgaard

Trying to Get Back on Track at Texas Children's Houston Open
Michael Thorbjornsen

Playing Well Heading to Texas Children's Houston Open
Harry Hall

Looking for Consistency at Texas Children's Houston Open
Brooks Koepka

Continues Building Momentum
Scottie Scheffler

Withdraws From Texas Children's Houston Open
Luke Clanton

Might Have a Problem in Houston
Sam Stevens

Happy to See Houston This Week
Keith Mitchell

Tries to Rebound After The Players Championship
Will Zalatoris

Returning This Week at Houston
Wyndham Clark

Trending in the Wrong Direction Heading to Houston
Shane Lowry

Seeking Better Luck in Houston This Weekend
Lerone Murphy

Suffers His First Loss
Movsar Evloev

Edges Out Lerone Murphy
CFB

Notre Dame Ranks No. 1 in Returning Production for 2026
Michael Aswell

Jr. Drops Decision At UFC London
Michael Aswell

Luke Riley Outclasses Michael Aswell Jr.
Sam Patterson

Suffers Unanimous-Decision Loss
Michael Page

Wins Lackluster Decision
Austen Lane

Suffers First-Round TKO Loss
Iwo Baraniewski

Delivers 28-Second TKO
Tyler Reddick

Overcomes Adversity for Fourth Victory of the Season At Darlington
Brad Keselowski

Falls Short of Darlington Victory Despite Domination
Ryan Blaney

Recovers From Pit-Road Struggles to Score Career-Best Darlington Finish
Carson Hocevar

Rallies to Finish Fourth at Darlington
Kyle Larson

Decent Performance Ends with Technical Issues At Darlington
RANKINGS
C
1B
2B
3B
SS
OF
SP
RP

RANKINGS

QB
RB
WR
TE
K
DEF