🦃 BLACK FRIDAY - 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

Mathieu Olivier

Sustains Upper-Body Injury Monday
Zach Werenski

Hurt Against Capitals
Paolo Banchero

Remains Out Tuesday
Deandre Ayton

Won't Play Tuesday
VJ Edgecombe

Misses Second Consecutive Game Tuesday
Paul George

Expected to Play Tuesday
Tyrese Maxey

Considered Probable Tuesday
Joel Embiid

Could Return Tuesday
Isiah Pacheco

Targeting a Return on Thursday
Shohei Ohtani

to Play for Team Japan in 2026 World Baseball Classic
Patrick Williams

Available Monday vs. Pelicans
Jaren Jackson Jr.

Cleared to Play Against Denver
Kevin Huerter

Ruled Out With Pelvis Soreness
Nicolas Claxton

Cleared to Face New York
Dean Wade

Sidelined Monday
Nikola Vučević

Nikola Vucevic Unavailable Against Pelicans
Landry Shamet

Sidelined Against Nets
Tyler Herro

Making 2025 Debut on Monday
Caris LeVert

Jaden Ivey, Caris LeVert Available Versus Indiana
Kevin Love

Out Monday Versus Warriors
Grayson Allen

and Ryan Dunn Sidelined vs. Rockets
Lamar Jackson

Now Dealing With a Toe Injury
Anthony Davis

Downgraded on Monday Night
Lonzo Ball

Set to Suit Up Versus Toronto
Jake Walman

to Remain Out Tuesday
Draymond Green

Ruled Out With Foot Sprain
Sam Merrill

and Craig Porter Jr. Out Monday
Ridly Greig

Still Out Monday
Baker Mayfield

Dealing With Low-Grade Shoulder Sprain
Thomas Chabot

Misses Monday's Matchup
Kirill Marchenko

Out Monday
J.T. Miller

Unavailable Monday
Brayden Point

Out Against Flyers
Nikita Kucherov

Good to Go Monday
Chris Godwin

Buccaneers Plan to "Ramp Up" Chris Godwin's Usage
Colorado Rockies

Warren Schaeffer to Stick Around as Rockies Manager in 2026
Ashton Jeanty

Ankle Injury isn't Severe
Jayden Daniels

to Practice This Week, Considered a Long Shot for Week 13
C.J. Stroud

Remains in Concussion Protocol
Mike Evans

Could Return Before End of Regular Season
J.J. McCarthy

in Concussion Protocol
Tyrod Taylor

to Remain the Jets' Starting QB
Shedeur Sanders

to Make Another Start for Browns in Week 13
Tee Higgins

Won't Play on Thanksgiving
Joe Burrow

Bengals Expect Joe Burrow to Play on Thursday
Baker Mayfield

Not Being Ruled Out for Week 13
CFB

Chris Bell Out for Rivalry Matchup Against Kentucky
New York Giants

Giants Fire Defensive Coordinator Shane Bowen
Tee Higgins

in the Concussion Protocol
Scott Wedgewood

Gives Avalanche Second Consecutive Shutout
Macklin Celebrini

Makes History During Multi-Point Performance
Joey Daccord

Posts Shutout in Losing Effort
David Rittich

Keeps Kraken Quiet
Jesper Wallstedt

Picks Up Third Shutout of the Season
Rasmus Andersson

Extends Point Streak With Three Assists
Davante Adams

Catches Two Touchdowns in Sunday Night Win
Baker Mayfield

has Sprained Shoulder, Will Undergo MRI Monday
Las Vegas Raiders

Raiders Fire Offensive Coordinator Chip Kelly
Ryan Helsley

Tigers Eyeing Ryan Helsley as a Starter
Quinshon Judkins

Salvages his Day With Two Trips to the End Zone
Alvin Kamara

Dealing With MCL Sprain, Timetable Unclear
Dan Hooker

Suffers Second-Round Submission Loss
Marcus Semien

Shipped to the Mets on Sunday
Arman Tsarukyan

Gets Submission Win
Brandon Nimmo

Traded to Texas
Belal Muhammad

Loses Back-to-Back Fights
Belal Muhammad

Ian Machado Garry Outpoints Belal Muhammad
Alonzo Menifield

Suffers First-Round Knockout Loss
Volkan Oezdemir

Gets Back In The Win Column
Jack Hermansson

Gets Knocked Out
Jack Hermansson

Myktybek Orolbai Knocks Out Jack Hermansson
Shamil Gaziev

Suffers First-Round Knockout Loss
Waldo Cortes-Acosta

Shines At UFC Qatar
Tagir Ulanbekov

Suffers Third-Round Submission Loss
Kyoji Horiguchi

Makes Triumphant UFC Return
MON

Alexandre Texier Joins Canadiens
Jason Dickinson

Returns to Action Sunday
Elias Lindholm

Activated From Injured Reserve
Mikko Rantanen

Suspended for One Game
Neal Pionk

Sustains Lower-Body Injury Sunday
Jean-Gabriel Pageau

Out Week-to-Week
Adolis García

Rangers Non-Tender Adolis Garcia on Friday
CFB

Beau Pribula Expected to Start Against Oklahoma
Dan Hooker

An Underdog At UFC Qatar
Arman Tsarukyan

Looks To Extend His Win Streak
Ian Machado Garry

A Favorite At UFC Qatar
Belal Muhammad

Looks To Bounce Back
Alonzo Menifield

Looks For His Third Consecutive Win
Volkan Oezdemir

Looks To Get Back In The Win Column
Myktybek Orolbai

Looks To Win Back-To-Back Fights
Jack Hermansson

Makes His Welterweight Debut
Kyoji Horiguchi

Returns To The UFC
Elly De La Cruz

Played Through Partially Torn Quad to End 2025
Tarik Skubal

Tigers "Doubtful" to Trade Tarik Skubal
Raisel Iglesias

Returning to the Braves on One-Year Deal
Sahith Theegala

Looking to Continue Fall Run at RSM Classic
Stephan Jaeger

Looking to Bounce Back at RSM Classic
Tom Hoge

Looking to Regain Form at RSM Classic
Joe Highsmith

Searching for Turnaround at RSM Classic
Adam Hadwin

Looking to Build on T11 Finish in Bermuda
Austin Eckroat

Searching for Momentum at RSM Classic
Joel Dahmen

Trying to Find Form at the RSM Classic
CFB

Garrett Nussmeier Doubtful to Play Against Western Kentucky
Michael Thorbjornsen

Hopes to End 2025 Campaign With Another Solid Finish
Andrew Novak

Looks to End 2025 Season on High Note at RSM Classic

RANKINGS

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