👉 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

Expert Advice
Articles & Tools
Import Your Leagues
Draft Rankings
Draft Simulator
Enter League Settings
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 draft 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
Draft Rankings
Draft Simulator
Enter League Settings
Compare Any Players
Rookies & Call-Ups
24x7 News and Alerts

REAL-TIME FANTASY NEWS

Connor Hellebuyck

Set to Start Friday Night
Samuel Girard

Evaluated for Lower-Body Injury
Hyeseong Kim

Rebuilt Swing Already Generating Results
Bailey Ober

Focusing on Mechanics in Camp
Devin Williams

Sees Struggles Continue in Spring Debut
Rafael Devers

Scratched With Hamstring Tightness
Marcelo Mayer

Stronger and Faster Entering 2026 Season
Kutter Crawford

Set for Live Batting Practice on Friday
Shane Baz

Strikes Out Four in Spring Debut on Friday
Blake Snell

Making Progress, Will be "Hard" to be Ready for Opening Day
Corey Seager

Scratched Due to Illness
Elly De La Cruz

Feels Fully Healthy This Spring
Stephen Kolek

Being Shut Down With Grade 1 Oblique Strain
Lone'er Kavanagh

Set For UFC Mexico City Main Event
Brandon Moreno

Looks To Bounce Back
Samuel Basallo

Thinks he Can Play This Weekend
David Martinez

Set For UFC Mexico City Co-Main Event
Marlon Vera

In Dire Need Of Victory
King Green

Looks To Win Back-To-Back Fights
Daniel Zellhuber

Aims To Snap Two-Fight Skid
Sergei Bobrovsky

Sharp In Victory
Brad Marchand

Scores Two Goals in Victory
Noah Dobson

Scores Twice in Overtime Loss
Matthew Schaefer

has Two-Goal Game
Felipe Bunes

Looks To Get Back In The Win Column
Édgar Cháirez

Edgar Chairez A Favorite At UFC Mexico City
Konnor Griffin

Back in the Lineup After Injury Scare
Troy Melton

Needs Extended Rest, Unlikely to be Ready for Opening Day
Royce Lewis

MRI Comes Back Clean on Royce Lewis
George Pickens

Cowboys Not Interested in Trading George Pickens
Cedric Coward

to Miss Sixth Straight Game
Taj Gibson

Agrees to Deal With Grizzlies
Memphis Grizzlies

Kyle Anderson Agrees to Buyout, Plans to Join Timberwolves
Jabari Smith Jr.

Exits with Right Ankle Injury
Norman Powell

Leaves Game with Groin Injury
Joe Musgrove

Sharp in Simulated Game, Quickly Approaching Spring Training Debut
Alexandre Sarr

Considered Week-to-Week
Kyle Freeland

Nearing Spring Debut
Lauri Markkanen

to Miss At Least Two Weeks
Willi Castro

Expected to be Aggressive on Basepaths in Colorado
Gerrit Cole

Set to Face Live Hitters Again on Friday
Gunnar Hoglund

Dealing with Knee Injury
Jacob Lopez

Throwing Live Batting Practice, Nearing Spring Debut
Matt Boldy

Makes History With Another Four-Point Performance
Jake Guentzel

Sets Up Three Goals Thursday
Leon Draisaitl

Tallies Four Points Against Kings
Joel Kiviranta

Sustains Undisclosed Injury Thursday
Filip Gustavsson

Makes Late Exit Thursday
Joel Armia

Sustains Upper-Body Injury
Drew Doughty

Exits Loss With Lower-Body Injury
Jordan Binnington

on Non-Roster List
Mackenzie Blackwood

Starting in Net Versus Wild
Jaxson Hayes

Good to Go Thursday Night
Robert Williams III

Donovan Clingan Out, Robert Williams III and Yang Hansen Cleared
Patrick Williams

Jalen Smith, Patrick Williams Out At Least One Week
Keldon Johnson

is Active on Thursday
Khris Middleton

Available Thursday Against Sacramento
Daniel Gafford

Ruled Out Thursday vs. Kings
Nikola Jović

Nikola Jovic Remains Out on Thursday
Stephon Castle

Cleared to Play Thursday vs. Nets
Davion Mitchell

is Available on Thursday
Joel Embiid

is Cleared for Thursday's Game
Shai Gilgeous-Alexander

Off the Injury Report for Friday
Norman Powell

Active On Thursday
Zaccharie Risacher

Available Against Washington
Andrew Nembhard

Set to Suit Up Thursday
Dylan Holloway

Rejoins Blues Lineup Thursday
Simon Edvinsson

Back in Red Wings Lineup Thursday
Adam Fox

Ready to Face Flyers
Igor Shesterkin

Available Thursday
Kris Letang

Returns to Action Thursday
Tim Stützle

Tim Stutzle a Game-Time Call Thursday
Ashton Jeanty

Not in Line for Workhorse Role in 2026?
Anthony Richardson Sr.

Colts Give Anthony Richardson Sr. Permission to Seek a Trade
Kyler Murray

Prefers to be Released
Derek Carr

"Strong Belief" That Derek Carr is "Very Serious" About Unretiring
Andy Dalton

Is Andy Dalton Available for a Trade?
Keith Mitchell

Making The Comfortable Return to PGA National
CFB

Chandler Morris Suing NCAA for Seventh Year of Eligibility
Chris Kirk

Searching for a Spark at Cognizant Classic
Brooks Koepka

Making Third PGA Tour Start at Cognizant Classic
Mackenzie Hughes

a Steady Option at Cognizant Classic
Seamus Power

Seeking More Green in Florida
PGA

Haotong Li Back From a Break as Florida Stretch Starts
Stephan Jaeger

Trying to Put Four Rounds Together in Florida
PGA

Nico Echavarria Again Attempting to Make the Weekend
Patrick Fishburn

Looking for a Spark at Cognizant Classic
Blades Brown

Set for Cognizant Classic Debut
Michael Thorbjornsen

Looking to Bounce Back at Cognizant Classic
Maxx Crosby

Raiders Expect Maxx Crosby to Return
Billy Horschel

Looks to Improve Season at Cognizant Classic
Kyle Pitts Sr.

Falcons Place Franchise Tag on Kyle Pitts Sr.
Joe Highsmith

Returns to Defend at Cognizant Classic
Quinshon Judkins

Out of Walking Boot, Will be Ready for Training Camp
Breece Hall

Jets Will Use Franchise Tag on Breece Hall if Extension isn't Reached
Joel Dahmen

Needs Better Consistency Heading Into The Florida Swing
Daniel Berger

Looks to Improve Putting as PGA Tour Begins Its Florida Swing
Kirk Cousins

Falcons Plan to Release Kirk Cousins
Zach Ertz

Plans to Return for 14th Season
Davis Thompson

Struggling to Find Birdies as Florida Looms
Tom Kim

Not Quite Cutting It in 2026
Nicolai Hojgaard

Wants to Build Momentum from Scottsdale
Christiaan Bezuidenhout

Returns After Extended Break for Florida Event
CFB

Gunner Rivers Follows His Father, Commits To North Carolina State
Will Zalatoris

Set to Make Tournament Debut at Cognizant Classic
Rasmus Hojgaard

Trending Up at the Cognizant Classic
Anthony Hernandez

Suffers Third-Round TKO Loss
Sean Strickland

Gets Back In The Win Column
Kyle Pitts Sr.

Falcons Planning to Use Franchise Tag on Kyle Pitts Sr.
Geoff Neal

Suffers Back-To-Back Knockout Losses
Uros Medic

Shines At UFC Houston
Dan Ige

Gets Finished For The First Time In His Career
Melquizael Costa

Extends His Win Streak To Six
NASCAR

Bubba Wallace Falls Short of Victory at EchoPark Speedway
Carson Hocevar

Rallies to Fourth At EchoPark Speedway After Early Struggles
Ross Chastain

Finishes Third At EchoPark Speedway
Chase Briscoe

Scores First Career Top-Five Finish at EchoPark Speedway
Tyler Reddick

Nabs His Second Win of the Season At EchoPark Speedway
Joey Logano

Will Be Popular DFS Pick at EchoPark Speedway
Tyler Reddick

on Pole After Qualifying Rained Out at EchoPark Speedway
Chase Elliott

Could Chase Elliott Be Worth Rostering At EchoPark Speedway?
Ryan Blaney

Is Ryan Blaney Worth Rostering for DFS at EchoPark Speedway?
William Byron

Is William Byron Worth Rostering for DFS at EchoPark Speedway?
Rondale Moore

Passes Away
Denny Hamlin

Is Worth Consideration for EchoPark Speedway DFS Lineups
Brad Keselowski

Is A Tournament Option for DFS At EchoPark Speedway
NASCAR

Is Bubba Wallace Rosterable In DFS At EchoPark Speedway?
Austin Cindric

Should DFS Managers Roster Austin Cindric at EchoPark Speedway?
Ross Chastain

Is Ross Chastain A Sneaky DFS Option for EchoPark Speedway?
Ricky Stenhouse Jr

Is Ricky Stenhouse Jr. Worth Rostering for DFS at EchoPark Speedway?
Alex Bowman

Will Start Towards the Rear At EchoPark Speedway
Javonte Williams

Cowboys Sign Javonte Williams to Three-Year, $24 Million Extension
RANKINGS
C
1B
2B
3B
SS
OF
SP
RP

RANKINGS

QB
RB
WR
TE
K
DEF