🖥 TAP TO SAVE 50% WITH CODE THANKS
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

Fantasy Baseball Rookie Risers/Fallers (Week 7)

Jon Denzler reflects on fantasy baseball prospects and rookie debuts from last week, including prospect stocks that are rising and falling for fantasy owners.

Well, the Major League season is already 23% of the way done. Some owners think that they are on their way to victory while others are patiently waiting for things to turn around. Still, while all the victory laps are being taken, the smart owner is looking forward to the rest of the year and finding what value can still be had. While the season always seems to move quickly, the dog days of summer are still upon us.

Now that we are rolling along, so too are the call-ups. This week, the Rotoballer team keeps tabs on all the new names and faces, with insight into their fantasy value to help any team. For owners looking for a cheap spark, look no further.

For redraft, dynasty, or general fantasy players knowing the new prospects is key to begin to plan out FAAB bids and waiver claims. Target or avoid these players to helps teams keep their competitive windows open.

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

 

Rookie Debuts - Stock Up

These players helped their fantasy value with solid debut weeks for their respective team. If not on owners's radars, these players need to be.

 

Nicky Lopez (2B, KC)

A fifth-round pick back in 2016 by the Royals, Lopez has moved through the system quickly due to a polished hit tool. Through 353 career games in professional ball, Lopez has a .296.378/.403 slash with 20 homers and 69 steals. Stepping into what looks to be a starting gig with Kansas City, Lopez has been hitting second and playing second base every day since the call. This means that Whit Merrifield will move to the outfield, and will hint at future moves with the roster. Whatever the case, Lopez seems to be a factor for the team this year with the early call.

Fantasy owners are happy with five hits in 11 ABs so far, but the lack of any counting stats is telling. Lopez will be a good batting average option but will offer little to no power, and perhaps, a handful of steals. The glove will keep him in the team, but when the Royals are competitive, if he is around, expect him to be hitting in the bottom third of the lineup. Stock is up with the early call, but expect D.J. LeMahieu without the power upside. In dynasty, owners can sell while there is some hype for surplus value.

 

Corbin Martin (SP, HOU)

The Houston native and boyhood Astros fan lit up the league in his first start. While only going 5.1 innings, he managed to rack up nine Ks, and only walked one. Getting the call before fellow top pitching prospect Forrest Whitley, Martin was posting a 1.48 ERA over 24.1 innings before the move. While Whitley still has the higher floor of the pair, Martin took a jump to start this year, and now looks to be a key piece in this rotation. With Colin McHugh heading to the bullpen, the spot is there even with some concerns on length.

Martin offers four pitchers, with a plus fastball being the main out pitch. In his one start he tended to sit with this pitch up in the zone but liked to throw the change-up down and away to righties. While the grouping will need to move a bit more to stay ahead of the hitters, the vertical approach can keep getting him Ks without an elite breaking option. Martin is my top FAAB bid this week and owners should break the bank to add a top arm, on a top team. If Whitley is still out there, wait, but if not, this is the target.

 

Cole Irvin (SP, PHI)

In his debut start of the campaign, Irvin worked effectively and posted seven strong innings versus the Royals. Ranked as a mid-teens  prospect within the Phillies organization by most sites, Irvin projects as an SP4 type over the rest of his career. With a fastball that tops out in the high-80s, Irvin will need to use his command to keep batters off his offerings. In his debut, that was the case, with one walks and five Ks. While he did give up five hits, he did not give up a single barrel.

The stock is up since Irvin could be an innings source for desperate fantasy owners. Not only are the Phillies looking to be on pace to win 90 games this year, a start, with length, can add eight or more victories the rest of the way. While he might only be around until Vince Velasquez is back, that still means three starts to show what he has. Expect the K numbers to be down, but the WHIP will make up for that. Irvin could be an SP3 in fantasy with the wins, and an easy, cheap add this week.

 

Rookie Debuts - Stock Neutral

These players neither helped nor hurt their fantasy value in the first week of play.

Austin Riley (3B/OF, ATL)

Even with the early hot start to his career, Riley’s stock is neutral due to playing time concerns. For the time being, it looks like he will have a chance to play in left, or at least, fill in the outfield with Ronald Acuna Jr. moving to center. Not only does Reilley lack real experience in the outfield, but might only be up for the next week or so. Obviously if he keeps hitting, the Braves will make other moves, but for now, watch the injury news on Ender Inciarte for a clear read on how to roster Riley.

In terms of his fantasy value, Riley might be one pf the top hitting options the rest of the way. A plus hit tool coupled with plus plus power makes Riley an offensive threat in all formats. There is a ton of swing-and-miss, with 1.36 Ks per game in the minors. And yet, the potential is there to make up for it, and if owners can settle for a .240 batting line, Riley can be a crucial option this week. Long-term he is still one of the top prospects in fantasy baseball, and for this year, the only real limit is playing time.

 

Rookie Debuts - Stock Down

These players hurt their fantasy value during their first week of play.

Shed Long (2B, SEA)

After the trade to New York and then to Seattle, Long’s stock is down with the move away from Great American. When the hit tool is the key, even something like the park might be key to what options he offers moving forward. After a hot start to the year at Triple-A, Long found himself in the mix due to some roster needs, and got the call sooner than expected. After slashing .295/.364/.535 with four homers over 33 games, Long was putting together his best showing in the upper minors, and peaked interest in the front office. From there he went hitless in 11 ABs with Seattle and is already back down in the minors, so no dice on that FAAB bid.

Long will be a frustrating prospect to own, as the hit tool shows enough promise to profile as a fantasy bat, but also, he lacks the glove to hold down a spot. After starting as a catcher, he has moved to the outfield, and second. If he can stay at second, he profiles as a .260/15/8 option which will be rosterbable in most formats. And yet, returning to the power limits at his home park, the batting average along might not be there to play. Still, with a spot to play on a team entering a rebuild, there might be playing time to boost the line.

 

Oscar Mercado (OF, CLE)

After being added in an intriguing trade with St. Louis last deadline by Cleveland, Mercado been a lingering option to play in the outfield. With any Cleveland outfielder, the context is critical, as there are no firm starts in the team as out now. Jordan Luplow might be the most apparent option, as the only right-handed bat hitting as of now. With left field, Jake Bauers will be rotated through, but also will take some time at first and designated hitter. Center and Mercado’s best spot is held down by Leonys Martin, but when he has not been hitting, there is a change coming soon.

This all means that Mercado will find playing time, but might be too raw for impact as of now. While he was hitting .294 at Triple-A, owners should expect something closer to the .254 career mark in the minors. With minimal power, the speed and glove are the carrying tools. The issue will be the batting line, as he will struggle early, causing the playing time to drop, and therefore limit the steals. For now let others break the bank, but in dynasty try to buy while the stock is down. With playing time he does have value, but the hype is a bit much for the no floor prospect in Cleveland.

More MLB Prospects Analysis




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

Robert Suarez

Agrees on Three-Year Deal With Braves
T.J. Watt

Could Miss Monday's Game With a Lung Issue
Trey Hendrickson

Moved to Injured Reserve
Josh Jacobs

Likely to Miss a Second Straight Practice
De'Von Achane

to Start the Week as Limited in Practice
CFB

Sherrone Moore Remains in Police Custody
CFB

Joe Klanderman Joining Baylor Coaching Staff
Alex DeBrincat

Extends Scoring Streak With Three-Point Effort
Dylan Guenther

Lights the Lamp Twice Wednesday
CFB

Kentucky Hiring Jay Bateman as Next Defensive Coordinator
Sam Bennett

Tallies Three Points Against Mammoth
Vince Dunn

Caps Off Three-Point Performance With Overtime Winner
Spencer Knight

Stops Rangers From Scoring Wednesday
Simon Edvinsson

Makes Early Exit Wednesday
Jared McCann

Injured in Wednesday's Win
Donovan Clingan

Misses Third Consecutive Game
Jrue Holiday

Still Out Thursday
AJ Green

Iffy for Thursday
Dennis Schröder

Dennis Schroder Likely to Remain Out Thursday
Zach LaVine

Out Thursday With Thumb Injury
Alperen Sengün

Alperen Sengun Back From Two-Game Absence Thursday
Stephen Curry

on Track to Return Friday
Si Woo Kim

Closes 2025 With Strong Finish Among Putting Woes
Akshay Bhatia

Looks to Rebound in 2026 After Down Year Off the Tee
Brian Harman

2025 Season a Step Back Despite Spring Win
Sam Burns

' Elite Putting Headlines a Solid 2025 Season
Sepp Straka

Ends Stellar 2025 Campaign on a High Note
Robert MacIntyre

Closes Out a Steady 2025 Campaign
CFB

Chip Kelly Interviews for Georgia Tech Offensive Coordinator Job
CFB

Louisville Receiver Chris Bell has a Torn ACL
Davante Adams

in Good Spot for Week 15 Despite Hamstring Soreness
Devin Booker

Won't Play Against OKC
Jordan Poole

Considered Questionable for Thursday
Maxi Kleber

Sidelined for Wednesday's Matchup With Spurs
Dakota Mermis

to Miss a Month
Jake Evans

to Miss Thursday's Matchup
Elias Pettersson

Unlikely to Play Thursday
Min Woo Lee

Breaks Through to Win in Texas This Year
Nick Bjugstad

to Miss at Least Three Games
PGA

Alex Noren Wins Twice on European Tour This Year
Connor Hellebuyck

Returns to Practice
Pelle Larsson

Sidelined at Least One Week
John Carlson

Could Return Thursday
Andrei Kuzmenko

Sits as Healthy Scratch Wednesday
Wyndham Clark

has Up-and-Down 2025 Golf Season
CFB

Michigan Fires Head Coach Sherrone Moore
Dereck Lively II

to Undergo Season-Ending Foot Surgery
Corey Conners

Comes Close to Winning Again in Very Good 2025
Justin Rose

Turns Back the Clock in 2025
Mike Evans

Officially Questionable for Thursday Night Game
Geno Smith

Unlikely to Play in Week 15
CFB

Jim Knowles Expected to be Hired as Tennessee's Defensive Coordinator
Tyrone Tracy Jr.

"Good to Go" for Week 15
Harris English

Enjoys Solid Finish at Hero World Challenge
CeeDee Lamb

has "One or Two" Things Left to the Clear Concussion Protocol
Jayden Daniels

Commanders Not Shutting Down Jayden Daniels for the Year
CFB

Defensive Coordinator Jim Knowles Not Being Retained at Penn State
CFB

Indiana's Stephen Daley Done for Season After Post-Game Injury
Kyle Pitts Sr.

Carries Momentum and a Questionable Tag into TNF
Drake London

Won't Play on Thursday Night
Tyrone Tracy Jr.

Practicing Coming Out of the Bye Week
Garrett Wilson

Practice Window Still Hasn't Opened
Breece Hall

Out on Wednesday With Knee Soreness
Pete Alonso

Orioles Finalizing Five-Year Deal
Jayden Daniels

Ruled Out for Week 15
Cade Otton

Considered Doubtful for Thursday Night
Trey Benson

Will Not Be Activated in Week 15, Will Not Return in 2025
Mike Evans

has "Shown Everything he Needed to Show" to Return in Week 15
Nick Bjugstad

Injured Tuesday
Zach Ertz

Officially Placed on Injured Reserve
Frank Vatrano

Makes Early Exit Against Penguins
Colten Ellis

Enters Concussion Protocol
George Pickens

Cowboys Not Worried About George Pickens' Effort Level
Scott Wedgewood

Hurt During Shootout
Victor Hedman

Suffers New Injury Blow
Bobby McMann

Suspended for One Game
Jordan McLaughlin

Listed as Questionable for Wednesday
Maxi Kleber

Questionable Wednesday
Marcus Smart

Ready to Face Spurs Wednesday
Luguentz Dort

Returns From Three-Game Absence Wednesday
Alex Caruso

Set to Return Wednesday
Shai Gilgeous-Alexander

Available Wednesday
Isaiah Joe

Out for Third Consecutive Game
Isaiah Hartenstein

Not Ready to Return Wednesday
Devin Booker

Listed as Questionable for Wednesday
Kyle Finnegan

Tigers, Kyle Finnegan Agree on Two-Year Deal
Bo Bichette

Red Sox Out on Bo Bichette For Now
Jason Zucker

Added to Injured Reserve
Philadelphia Phillies

Phillies Extend Manager Rob Thomson Through 2027 Season
Michael King

the Mets' Top Rotation Target?
Ronald Acuña Jr.

Ronald Acuna Jr. Could Move Back to Leadoff Spot
CFB

Florida, Wisconsin Among Suitors for QB Transfer Kenny Minchey
CFB

Bryan Harsin, Justin Wilcox Candidates for Washington State Head Coach Job?
Edwin Díaz

Edwin Diaz Agrees to Deal With the Dodgers
Kyle Schwarber

Returning to Phillies on Five-Year Deal
CFB

Ole Miss Hiring John David Baker as Offensive Coordinator
CFB

Ty Howle the Top Target for Virginia Tech Offensive Coordinator Job
Shohei Ohtani

to be Used More as Traditional Starting Pitcher Next Year
Yordan Alvarez

to Become Full-Time DH in 2026?
Mason Miller

Padres Plan to Keep Mason Miller in the Bullpen
Ranger Suárez

Orioles Interested in Signing Ranger Suarez
Anthony Volpe

Yankees Don't Expect Anthony Volpe to be Ready in April
Gerrit Cole

Targeting a Return in May/June
CFB

Heisman Trophy Finalists Announced on Monday
CFB

Anthony Hill Jr. Declaring for 2026 NFL Draft
CFB

Ryan Walters a Candidate for Tennessee Defensive Coordinator Job?
Rory McIlroy

Ends 2025 as the Year's Most Unburdened Player
Aaron Rai

Needs to Figure Out Putting Woes This Offseason
Jordan Spieth

Plays Better on Paper in 2025 Than Results Show
PGA

Chris Gotterup Needs to Find Better Touch and Consistency This Offseason
Hideki Matsuyama

Ends 2025 Season With a Bookend Victory
CFB

Tennessee Fires Defensive Coordinator Tim Banks
Scottie Scheffler

Comes Up Just Shy of Hero World Challenge Victory
Merab Dvalishvili

Drops A Decision At UFC 323
Petr Yan

Reclaims Bantamweight Title
Alexandre Pantoja

Era Ends With Gruesome Injury
Joshua Van

Becomes Second-Youngest UFC Champion
Brandon Moreno

Suffers His First TKO Loss
Brandon Moreno

Tatsuro Taira Becomes First Fighter To Finish Brandon Moreno
Henry Cejudo

Payton Talbott Retires Henry Cejudo
Henry Cejudo

Retires After UFC 323 Loss
Jan Blachowicz

Bogdan Guskov Vs. Jan Blachowicz Ends In A Majority Draw
Jan Blachowicz

And Bogdan Guskov Fight To Majority Draw
CFB

Texas RB CJ Baxter Entering Transfer Portal
San Francisco Giants

Jeff Kent Elected to Baseball Hall of Fame
Ketel Marte

Red Sox Interested in Trading for Ketel Marte
Kyle Schwarber

Pirates Make Four-Year Offer to Kyle Schwarber
CFB

Mississippi State, Rice Accept Bowl Bids as 5-7 Teams
CFB

Auburn, Florida State, Baylor Among Teams to Decline Bowl Bids
CFB

Rob Aurich Set to Become Nebraska's Defensive Coordinator
Jose A. Ferrer

Mariners Acquire Jose A. Ferrer from the Nationals
Harry Ford

Traded to the Nationals
Cody Bellinger

Drawing Interest From the Phillies
Petr Yan

Looks To Reclaim Bantamweight Belt
Merab Dvalishvili

Set For His Fourth Title Defense
Joshua Van

Can Become The New Flyweight Champion
Alexandre Pantoja

Set For Fifth Title Defense At UFC 323
Tatsuro Taira

Looks To Win Back-To-Back Fights
Brandon Moreno

Searches For His Third Win In A Row
Payton Talbott

A Favorite At UFC 323
Henry Cejudo

Set For His Retirement Fight
Jan Blachowicz

Set To Open Up UFC 323 Main Card
Bogdan Guskov

Looks To Extend His Win Streak

RANKINGS

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