👉 TAP TO SAVE 50% WITH CODE SPRING
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


Sneaky Fantasy Baseball Waiver Wire Pickups and Buys (Week 21): Hot Pitchers to Sustain Success?

Spencer Arrighetti - Fantasy Baseball Prospects, Draft Sleepers, MLB Rookie Rankings

Mike looks at five sneaky fantasy baseball waiver wire pickups for starting pitchers in Week 21 (2024) who are on hot streaks and sees if they can sustain their success.

We’ve seen some star starting pitchers catch fire down the stretch, including Blake Snell and George Kirby. However, not every fantasy baseball manager is lucky enough to have one of them on their roster.

For those who need starting pitching help, streaming the right players could be key. Are Spencer Arrighetti, Ryne Nelson, Nick Martinez, Edward Cabrera, and DJ Herz just viable streaming options, or could any of them be worth rostering for the remainder of the season?

Let’s dig into the stats for these five starters and discuss if they can sustain their current level of success. All roster percentages are via Yahoo.

Featured Promo: Save 50% the regular price with discount code SPRING, for a limited time. Exclusive access to our Team Sync platform, DFS cheat sheets, Lineup Optimizers, betting/prop picks, and exclusive content from Nick Mariano and Eric Cross! GAIN ACCESS NOW

 

Spencer Arrighetti, Houston Astros (42% rostered)

Arrighetti has provided the Astros with a boost lately, recording a 3.25 ERA and a 1.06 WHIP over his last six starts. For fantasy managers, the most notable stat for him during that stretch was that he posted 49 strikeouts across 36 innings. In his last two starts against the Rays and Red Sox, he struck out a total of 25 batters.

Arrighetti has a 5.14 ERA for the season, but his 4.18 FIP indicates that he probably hasn’t pitched that poorly. The big plus for him is his 27.9% strikeout rate. Strikeouts aren’t usually readily available on the waiver wire. However, Justin Verlander (neck) is nearing a return, so the best-case scenario for Arrighetti might be the team moving to a six-man rotation so he can still keep his spot. He’s not a must-add in 12-team leagues, but those who need strikeouts should consider picking him up.

 

Ryne Nelson, Arizona Diamondbacks (27% rostered)

As the Diamondbacks make their playoff push, Nelson has recorded a 2.90 ERA and a 0.97 WHIP over his last eight starts. Across 49.2 innings during that span, he only allowed two total home runs. After recording a 5.31 ERA and a 5.07 FIP last year, he has improved significantly this year with his 4.51 ERA and 3.65 FIP.

The concern with Nelson is that the Diamondbacks rotation is finally getting healthy. Both Merrill Kelly and Eduardo Rodriguez are back from the injured list. Zac Gallen left his last start with cramps, but he is not expected to miss any time. If the Diamondbacks go with a six-man rotation, then Nelson should be a part of it. However, he could also find himself in the bullpen soon. He might not even be a viable streaming option for much longer.

 

Nick Martinez, Cincinnati Reds (24% rostered)

Martinez has served as a starter and a reliever for the Reds this season. His last two outings have been starts, and he combined to log 12 strikeouts over 12 scoreless innings. He allowed only five hits and didn’t walk a single batter. One matchup came against a favorable foe in the Marlins, but the other one wasn’t easy against the Brewers in Milwaukee.

Martinez looks primed to serve as the Reds’ fifth starter down the stretch. He has a 1.03 WHIP for the season and has limited hitters to a 4.0% barrel rate, which is encouraging for his prospects moving forward. However, he has just a 20.4% strikeout rate this season. He’s worth adding in 15-team or deeper leagues, but his limited strikeout upside should leave him in the streamer category for shallower formats.

 

Edward Cabrera, Miami Marlins (19% rostered)

Cabrera has faced some difficult lineups lately, including the Mets, Orioles, and Braves. Still, he has given up just seven runs (six earned) over 27 innings in his last five starts. The scary part was that he walked 16 batters during that span. He helped make up for it, though, by giving up just 18 hits and recording 26 strikeouts.

Cabrera has a 13.7% walk rate for his career, so his lack of command is nothing new. It’s also one of the main reasons why he has a 1.43 WHIP this season. The good news for fantasy managers is that he has a 28.1% strikeout rate. With that in mind, he’s worth streaming when he has a favorable matchup. However, with the way he racks up walks, he’s not a must-roster player.

 

DJ Herz, Washington Nationals (6% rostered)

Herz has not allowed more than two runs in any of his last four outings. The downside is that he didn’t log more than five innings in any of those outings. However, he did post 22 strikeouts over 17.2 innings. That has been his calling card since the Nationals brought him up. Over his 11 starts, he has a 29.0% strikeout rate.

A significant concern with Herz is that he has allowed 1.7 HR/9. After posting a 1.42 WHIP at Triple-A, he has a 1.35 WHIP in the majors. Still, his spot in the Nationals’ starting rotation is likely secure. Trevor Williams (elbow) hasn’t even started to throw off a mound again. He can provide plenty of strikeouts, but his pedestrian ERA and WHIP make Herz someone who should be firmly planted in the streamer category rather than someone who can be relied upon regularly.



Download Our Free News & Alerts Mobile App

Like what you see? Download our updated fantasy baseball app for iPhone and Android with 24x7 player news, injury alerts, sleepers, prospects & more. All free!



More Fantasy Baseball Advice




REAL-TIME FANTASY NEWS

Elly De La Cruz

to Miss 2-4 Weeks of Action
Chase Burns

is Scratched Due to Illness
A.J. Brown

Traded to Patriots in Blockbuster Deal
Deiveson Figueiredo

Suffers Second-Round Submission Loss
Song Yadong

Gets Second-Round Submission Win
Russell Wilson

Taking a Job with CBS for 2026 Season
JuJu Smith-Schuster

Giants Adding JuJu Smith-Schuster on a One-Year Deal
Zhang Mingyang

Suffers Back-To-Back Losses
Alonzo Menifield

Gets Back In The Win Column
Braxton Berrios

New York Giants Agree to One-Year Deal with Braxton Berrios
Odell Beckham Jr.

Signing with Giants
Tallison Teixeira

Suffers First-Round Knockout Loss
Myles Garrett

and Jared Verse Swap Teams in Blockbuster Deal
Sergei Pavlovich

Scores First-Round Knockout Win
Cameron Smotherman

Suffers Third Loss In A Row
Edwin Arroyo

Reds Promote Top Infield Prospect Edwin Arroyo, Viewed as Priority Pick Up Ahead of MLB Debut
Kai Asakura

Earns His First UFC Win
Elly De La Cruz

Placed on IL with Right Hamstring Tightness
Mason Taylor

Dynasty Value Takes a Hit for Now
Denny Hamlin

Earns the first Nashville Cup Series Victory of his Career on Sunday
Zachariah Branch

a Steal in the Second Round of Rookie Drafts?
Christopher Bell

Finishes as the Runner-Up at Nashville
Chase Briscoe

Earns First Career Podium Finish at Nashville
Ryan Blaney

Scores A Solid Top-10 Finish at Nashville
Eli Stowers

Worth Targeting Now Before Eventual Breakout?
Kyle Larson

Top-10 Streak at Nashville Ends after Late Flat Tire Spin
Germie Bernard

Expected to Require Some Patience in Dynasty Leagues
Denzel Boston

a First-Round Target in Dynasty Rookie Drafts
Bryce Young

Dynasty Value Impacted by Inconsistency
Jeremiyah Love

Can Jeremiyah Love Become an Instant Fantasy Contributor?
Odell Beckham Jr.

Giants Working Out JuJu Smith-Schuster and Braxton Berrios in Addition to Odell Beckham Jr.
Odell Beckham Jr.

Working Out for Giants
A.J. Brown

Could Be Dealt Within Next 24 Hours
Parker Washington

Set to Play "Most Important Role" of His Career in Jaguars Offense
Elly De La Cruz

Exits with Hamstring Tightness
Tyler Reddick

Is One of the Top Favorites to Win at Nashville
Kyle Larson

May Continue his Top-10 Consistency at Nashville this week
Christopher Bell

Is One of the Top Competitors for the Win at Nashville
Chase Briscoe

Is A Must Start for Nashville DFS Lineups
Chase Elliott

has Plenty of Upside for Nashville DFS Lineups
William Byron

Is William Byron A Playable DFS Option for Nashville Lineups?
Wan'Dale Robinson

Dynasty Value May Have Peaked in 2025
Carson Hocevar

Is Likely to have Another Solid Result at Nashville
Tyler Shough

Should Dynasty Managers Consider Selling High on Tyler Shough?
NASCAR

Should Fantasy Players Roster Bubba Wallace at Nashville?
Garrett Wilson

Dynasty Upside Remains High Despite Questionable Offensive Environment in New York
Chris Buescher

Is A Decent All-Around DFS Option for Nashville Lineups
Daniel Suarez

is Likely to Drop Positions during the Cracker Barrel 400
Kenneth Gainwell

Carries Dynasty Sell-High Appeal After Breakout 2025 Campaign
Garrett Crochet

Suffers Setback, Likely to Undergo MRI for Lat Tightness
Denny Hamlin

Could Denny Hamlin Dominate at Nashville?
Ryan Blaney

Is a DFS Tournament Option at Nashville
Ty Gibbs

Don't Overlook Ty Gibbs at Nashville
Joey Logano

Could Show Life at Nashville
Ross Chastain

Needs a Good Run at Nashville
Chet Holmgren

Fails to Step Up in the Season Finale
Cason Wallace

Ends Postseason with Strong Showing
Shai Gilgeous-Alexander

Caps MVP Season with Game 7 Exit
Stephon Castle

Continues Postseason Run with 16 Points
Julian Champagnie

Shines in Series-Clinching Win
De'Aaron Fox

Provides Secondary Punch in Game 7 Triumph
Victor Wembanyama

Earns Conference Finals MVP in Spurs' Game 7 Win
NBA

Warriors Prioritize Depth Around Returning Steve Kerr
Donovan Mitchell

Remains Cleveland's Top Priority
Adou Thiero

Remains a Lakers Development Project
NBA

76ers Hire Mike Gansey as President of Basketball Operations
NBA

Chicago Bulls Explore Kevin Young as Coaching Candidate
Kyrie Irving

Reports He's Nearing Full Strength in ACL Recovery
Lane Hutson

Posts a Power-Play Assist in Game 5 Loss
Cole Caufield

Nets a Power-Play Goal in Season-Ending Loss
Seth Jarvis

Closes Out East Finals With Multi-Point Game
Logan Stankoven

Notches Three Points in Big Game 5 Win
Taylor Hall

Racks Up Three Points in Series-Clinching Win
Frederik Andersen

Remains Stellar as Hurricanes Clinch Finals Berth
Jacob Gonzalez

is Heading to the Big Leagues
Munetaka Murakami

Exits with Hamstring Tightness
Mitchell Robinson

Plans to Play in Game 1 After Finger Surgery
Ajay Mitchell

Ruled Out for Game 7
Jalen Williams

Unavailable in Decisive Game 7
NBA

Magic Finalizing Hire of Sean Sweeney as Head Coach
Eury Pérez

Eury Perez is Placed on 15-Day Injured List
Deiveson Figueiredo

Set For UFC Macau Main Event
MMA

Yadong Song Returns At UFC Macau
Alonzo Menifield

An Underdog At UFC Macau
Zhang Mingyang

Set For UFC Macau Co-Main Event
Tallison Teixeira

Looks To Win Back-To-Back Fights
Sergei Pavlovich

A Favorite At UFC Macau
Cameron Smotherman

Looks To Bounce Back
Kai Asakura

Looks To Get Back In The Win Column
CFB

Faizon Brandon In Position to Start Week 1
CFB

Dane Weber Commits to Cal
CFB

Joey McGuire Attempts to Add Texas to Schedule
CFB

Mike Leach on 2027 College Football Hall of Fame Ballot
CFB

Maryland, Baylor Schedule Home-and-Home
CFB

Taron Dickens Decommits From North Carolina
Jalen Williams

Limited in Game 6 Return
Jared McCain

Provides Bench Spark in Game 6 Loss
Shai Gilgeous-Alexander

Posts Lowest-Scoring Night of His MVP Season
De'Aaron Fox

Struggles From the Field Thursday
MLB

MLB Proposes Hard Salary Cap as Part of Next CBA
Kenley Jansen

Tigers Place Kenley Jansen on Injured List With Pelvic Inflammation
Teoscar Hernández

Teoscar Hernandez Heading to Injured List With Hamstring Strain
MON

Lane Hutson Struggles in Game 4 Loss
CAR

Logan Stankoven Nets Eighth Postseason Goal
CAR

Sebastian Aho Pots Game-Winner on Power Play
CAR

Nikolaj Ehlers Tallies Two Helpers in Impressive Road Win
CAR

Shayne Gostisbehere Records Two Assists in Game 4 Win
CAR

Frederik Andersen Establishes Hurricanes New Postseason Shutout Record
Yordan Alvarez

Continues Homer Barrage With Two More Long Balls on Wednesday
Cristopher Sánchez

Cristopher Sanchez Makes History With Seven More Shutout Innings Against Padres
Teoscar Hernández

Teoscar Hernandez Lifted From Wednesday's Game Early With Hamstring Strain
Kenley Jansen

Exits Relief Appearance on Wednesday With Groin Injury
Eury Pérez

Eury Perez Pulled Early on Wednesday With Hamstring Issue
CFB

Drew Mestemaker a Top Big 12 Quarterback Right Away?
PGA

Sungjae Im Remains Boom-or-Bust at Colonial
PGA

Michael Thorbjornsen Trending in Wrong Direction Entering Colonial
Russell Henley

a Top Option at Colonial
Harry Hall

Hoping Putter Carries Him at Colonial
Rickie Fowler

Looks to Regain Momentum at Colonial
Pierceson Coody

Looking to Stay Hot at Colonial
Martin Necas

Collects an Assist in Game 4 Loss to Golden Knights
Gabriel Landeskog

Scores Only Avalanche Goal in Season-Ending Loss
Carter Hart

Finishes Series-Clincher With 20 Saves
Dylan Coghlan

Continues Unlikely Success Story
Cole Smith

Scores Series-Clincher Tuesday Night
Mark Stone

Nets Another Goal as Golden Knights Finish Off Avalanche
Ludvig Aberg

Looking to Exchange Momentum for a Victory in Fort Worth
Stephan Jaeger

Trending Upward as PGA Heads to Fort Worth
Max Homa

Comes Off Awful Putting Performance at PGA Championship
Tony Finau

Faces Different Test at the Colonial
Robert MacIntyre

Seeks Better Beginning in Fort Worth
Tom Hoge

Ups and Downs Could Continue at Colonial
Brian Harman

Not Having the Best Golf Season in 2026
Austin Eckroat

Struggling Too Often Heading to Charles Schwab Challenge
Zach Bauchou

Tries to Keep Momentum Rolling at Colonial
Keegan Bradley

Looking to Rebound at Colonial
RANKINGS
C
1B
2B
3B
SS
OF
SP
RP

RANKINGS

QB
RB
WR
TE
K
DEF