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The Waiver Wire Watch List: Week 21

Throughout the season, you want to get the jump on your competition and sniff out the breakout players before they break out. That's what this list is all about--using some in-depth research and advanced analytics to find the players who aren't quite there yet but are on their way. Some of these may suit your needs for an immediate pick-up depending on your team's situation.

This is not necessarily a list of players you should add right away at the start of Week 21 - it is a list of players to keep a very close eye on in most leagues as we further into June, and to consider picking up in deeper formats. In some cases, we will even caution you not to pick up a widely-added player, and steer you away from the fool's gold.

Use it to build your own watch list.

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

 

Pitchers to Watch in 12+ Team Leagues

Dillon Peters (SP, LAA)

After some early-season bullpen outings and an early-June spot-start, Dillon Peters was called up to join the rotation for good on July 21st. Since that call-up he's rattled off five decent outings, going 2-1 with a 3.14 ERA across 28.2 innings. His last three starts have been particularly impressive, as he's tossed quality starts in all three and has posted a 19:2 strikeout to walk ratio.

I'm particularly encouraged by the control he's showing, and while he's no flame-throwing ace, he strikes out just enough batters (21.2% in 2019) to be useful. Peters has a pair of tough draws in the Rangers and Astros this week so you're not adding him now, but I'm giving him a vote of confidence moving forward.

Joe Ross (SP, WAS)

Not unlike Peters, Joe Ross has been on a hell of a hot streak. He's dazzled in three August starts, going 3-0 with a microscopic 0.50 ERA across 18 innings of work. He's making a case for himself as the Nationals' fifth starter even when Max Scherzer returns (Ross is currently occupying his spot in the rotation), and with the Nationals chasing the Braves and staving off wild card contenders they will likely give him that opportunity. The nine walks are much higher than you'd like to see, but no home runs across the three starts is outstanding given he's had trouble with the long ball in the past.

You do still need to wait and see if he holds onto a rotation spot, but Ross has some truly encouraging numbers at the moment and he's worth watching closely.

 

Batters to Watch in 12+ Team Leagues

Mike Yastrzemski (SF, OF)

Yastrzemski is on an absolute tear right now, with six homers in his last seven games, bringing him to 16 on the season. This kind of power surge is unlikely to continue, but the 28-year-old is still seeing the ball extremely well right now. Yastrzemski isn't an immediate add given that his playing time still isn't a guaranteed thing every day (he does still head to the bench against lefties), but he also wouldn't be an everyday player in your fantasy lineup. As long as he's hitting this well, he could make for a nice injury replacement or bench player who gets in your lineup based on the matchup.

Luis Arraez (2B/3B/OF, MIN)

Arraez has been a pleasant surprise for the Twins this season, and he's been particularly productive in August. He's hitting .349 this month, and that has his average at an impressive .355 on the season as a whole. There isn't a ton of pop in his bat, as he has just three homers in 55 games, but his contact abilities and position in the potent Twins offense make him a useful asset in roto leagues. His 34 runs scored and obviously the batting average and .421 OBP earn him a platoon spot in your fantasy lineup if you're looking for a late-season boost.

Manuel Margot (SD, OF)

Remember when Manny Margot was an up-and-coming blue-chip prospect? He's never truly panned out, as he's never hit over .263 or hit more than 13 homers. He did set all those career highs and swipe 17 bags in his best overall season (2017), but that's not anywhere near living up to the initial hype. Margot still probably isn't much more than a middling MLB outfielder, but he's hitting extremely well in August in a part-time role. Across 27 plate appearances, he's hitting .375 with four homers and seven RBI, which might be enough to earn him some extra playing time. Watch and see if that becomes the case, and if it does Margot's speed and middling average/power combo would merit a roster spot for fantasy.

More Waiver Wire Pickups and Streamers




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REAL-TIME FANTASY NEWS

Mason Lohrei

Unavailable Sunday
Dmitri Voronkov

Considered Week-to-Week
Artyom Levshunov

Out With Fractured Hand
Sidney Crosby

Practices Fully on Sunday
Geno Smith

"No Doubt" That Geno Smith is Jets' Starting Quarterback
George Kittle

49ers Hopeful George Kittle Will be Ready for Week 1
NFL

Eric McAlister Diagnosed With Fractured Foot
Zach Charbonnet

Could Return to a Wide-Open Backfield
Brian Thomas Jr.

Uncertain Future Could Make Him a Buy-Low Candidate
Isaiah Jackson

is Ruled Out for Sunday
Kyle Larson

Is Likely to Pay Off for DFS at Martinsville
Bobby Portis

to Miss Third Straight Game
Luke McCaffrey

Is Luke McCaffrey Still Worth Stashing on Dynasty Benches?
Ryan Rollins

is Absent on Sunday
Christopher Bell

Could Have Another Top-10 Performance At Martinsville
Kyle Kuzma

Remains Out on Sunday
Myles Turner

Gets Downgraded to Out
William Byron

Is A Threat to Win Again at Martinsville
NFL

Elijah Sarratt's Contested-Catch Ability is a Double-Edged Sword
Jayson Tatum

is Upgraded to Available
Chase Elliott

is A Solid DFS Option for Martinsville Lineups
Jaylen Brown

to Miss Second Straight Game
Roman Wilson

a Cut Candidate for Dynasty Managers Facing Roster Decisions
Chase Briscoe

has Plenty of Upside for DFS Lineups at Martinsville
Patrick Mahomes

Andy Reid Doesn't Offer Timeline on Patrick Mahomes
Carlos Estévez

Carlos Estevez Unlikely to See High-Leverage Opportunities in Near Future
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The Buy-Low Window for Tre' Harris Could Be Closing
Dont'e Thornton Jr.

Is Dont'e Thornton Jr. Still Worth Rostering in Dynasty Formats?
Braelon Allen

Has Clear Buy-Low Upside Coming Off a Lost Year
Michael Mayer

Is Michael Mayer a Sneaky Buy-Low Candidate for Dynasty Managers?
KaVontae Turpin

Blocked Off from a Significant Offensive Role in Dallas
Jacob deGrom

Feels "Much Better," Hopeful he Can Start This Week
Josh Allen

"Good to Go" After Foot Surgery
Cole Hutson

Delivers Two Assists Saturday
Mikhail Sergachev

Ties Mammoth Record With Four Assists
Connor McDavid

Reclaims Scoring Lead With Three-Point Effort
Dmitri Voronkov

Unavailable Sunday
Aliaksei Protas

Suffers Upper-Body Injury Saturday Night
Ty Gibbs

Should Fantasy Managers Roster Ty Gibbs at Martinsville?
Josh Anderson

Limited Due to Illness Saturday
Ryan Preece

Is A Solid DFS Option for Martinsville Lineups
Josh Berry

Could Josh Berry Pay Off for Tournament DFS Lineups At Martinsville?
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Nathan Bastian Makes Early Exit Saturday
Carson Hocevar

May be Too Inconsistent to Start in Martinsville DFS Lineups
Dejounte Murray

Uncertain for Sunday
Austin Cindric

Is Austin Cindric Worth Rostering for DFS At Martinsville?
Jerami Grant

Won't Play Against Wizards
Pascal Siakam

Iffy for Sunday
Chet Holmgren

Available Against Knicks Sunday
Norman Powell

May Miss Sunday's Game
Jaylen Brown

Questionable Sunday
Kevin Porter Jr.

Unlikely to Return This Season
Denny Hamlin

the Favorite to Win at Martinsville
Ryan Blaney

Should Contend at Martinsville
Tyler Reddick

Should Come Back Down to Earth at Martinsville
Joey Logano

Will Be Strong at Martinsville
Deshaun Watson

in "Pole Position" to be Week 1 Starting QB?
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Bubba Wallace Looking to Rebound at Martinsville
Shane Van Gisbergen

Shane van Gisbergen Showing Progress, Qualifies Fifth at Martinsville
Gabriel Vilardi

has a Two-Point Performance
Ivan Demidov

Collects Two More Points on Saturday
Alexandre Sarr

Out Sunday vs. Trail Blazers
Neemias Queta

Questionable for Sunday
Jayson Tatum

Could Rest on Back-to-Back
Derrick White

Could Miss Hornets Game
Immanuel Quickley

Remains Sidelined vs. Magic
Brandon Ingram

Questionable Against Orlando
Luka Dončić

Luka Doncic to Serve One-Game Suspension Monday
Dylan Cease

Fans 12 in Blue Jays Debut on Saturday
Kyler Murray

Dynasty Value Gets New Life With Move to Minnesota
Rachaad White

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Shane Wright

Exits Early Saturday
Connor Zary

Remains Out Saturday Night
Noah Laba

a Game-Time Call Sunday
Jonathan Quick

to Remain Unavailable Sunday
Stefon Diggs

Still a Free Agent With April Approaching
Joel Hanley

to Miss Rest of Season
Alvin Kamara

Workload Expected to Look Drastically Different in 2026
Ethen Frank

Remains Out Saturday
Robert Thomas

Available Saturday
Andrew Vaughn

Needs Hand Surgery, Expected to be Out 4-6 Weeks
Jacob deGrom

"Confident" he Will Make his Next Start
Trey Benson

Facing Uphill Battle for Playing Time in Arizona
Jacob deGrom

Scratched From Saturday's Start Due to Neck Stiffness
Jeferson Quero

Brewers Calling Up Catching Prospect Jeferson Quero
David Pastrnak

Riding 11-Game Point Streak
Deyvison De Los Santos

Marlins Promote Deyvison De Los Santos to Major Leagues
Shea Langeliers

Hits Two Home Runs on Opening Day
Kevin Gausman

Picks Up No-Decision But Strikes Out 11 on Opening Day
Tanner Bibee

Day-to-Day, Could Make his Next Start
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
Tanner Bibee

Shoulder Issue Not Considered Serious
Joe Pyfer

Set For UFC Seattle Main Event
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
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
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