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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 lineup 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

Romeo Doubs

Questionable to Return Against Bears in Week 16
Jordan Love

Ruled Out with Concussion, Replaced by Malik Willis
Jalen Smith

Expected to Remain in Lineup Sunday
Ayo Dosunmu

Probable for Meeting With Hawks
Jordan Love

Evaluated for Concussion, Questionable to Return
Coby White

Iffy for Sunday
Andrew Wiggins

May Remain Out Sunday
Davion Mitchell

Questionable for Sunday
Tyler Herro

to Miss Fourth Straight Game Sunday
Trae Young

Available for Sunday's Tilt
Doug McDermott

Active on Saturday
Rui Hachimura

Misses Battle of Los Angeles
Jerami Grant

Won't Play Saturday Night, Kris Murray Joins Starting Unit
Jonathan Isaac

Tristan da Silva Out, Jonathan Isaac Returns for Magic Saturday
Jalen Suggs

Out Against Jazz
Lauri Markkanen

Misses Second Consecutive Game
Grayson Allen

Unavailable Against Warriors
Jonathan Kuminga

Misses Saturday's Action Due to Illness
Cam Spencer

Makes Third Career Start Saturday
Cam Whitmore

Jamir Watkins Out Against Grizzlies
Bilal Coulibaly

Departs Lineup Saturday
Khris Middleton

Ready to Face Grizzlies
Pat Connaughton

Tre Mann, Pat Connaughton Active Saturday
D'Andre Swift

Officially Active Against Packers on Saturday
Dontayvion Wicks

Christian Watson and Dontayvion Wicks Active for Week 16
Caris LeVert

Cleared for Action Saturday
Marcus Mariota

Questionable to Return with Hand Injury
Josh Jacobs

Active for Saturday's Game
Ricky Pearsall

Ruled Out for Week 16
Mike Matheson

Returns Against Former Team Saturday
Timothy Liljegren

Misses Saturday's Game
Mackie Samoskevich

Out on Saturday
Anthony Cirelli

Available Against Hurricanes
Brandon Hagel

Added to Injured Reserve
Nikita Kucherov

a Game-Time Call Saturday
J.T. Miller

Injured in Saturday's Win
Christian Watson

Should Be Able to Go Against Bears
Zach Bogosian

Unavailable Saturday
Marcus Johansson

Questionable for Saturday
Bo Horvat

to Miss Fourth Straight Game Saturday
Seth Jarvis

to Be "Out for a While"
Phillip Danault

Rejoins Canadiens for Draft Pick
Mason Marchment

Blue Jackets Acquire Mason Marchment
Brandon Lowe

Pirates Acquire Brandon Lowe in Three-Team Trade
Shane Baz

Orioles Acquire Shane Baz From the Rays
Jonathan Marchessault

Out Day-to-Day
Tristan Jarry

Oilers Place Tristan Jarry on Injured Reserve
Patrick Kane

to Remain Out Saturday
Shea Theodore

Considered Week-to-Week
Jack Eichel

to Miss at Least Two More Games
Davante Adams

Likely Won't Play in Week 17
Jordan Martinook

Misses Friday's Contest
Evan Rodrigues

Available Against Hurricanes
Tyler Seguin

Undergoes Surgery, to Be Re-Evaluated After Olympics
Marvin Harrison Jr.

Listed as Questionable for Week 16
Drake London

Expected to Play Sunday
Tee Higgins

Questionable to Play in Week 16
Michael Carter

Will Start at RB in Week 16
Dalton Kincaid

Will Practice on Friday, Expected to Play on Sunday
Garrett Wilson

Shelved for Remainder of 2025
CFB

Darian Mensah Returning to Duke Next Season
CFB

Josh Hoover Linked to Indiana in Transfer Portal
CFB

Arch Manning Agrees to Reduced Compensation for 2026 Season
Kenneth Walker III

Breaks Off Long Touchdown in Comeback Win vs. Rams
Matthew Stafford

Racks Up Highest Yardage Total in Over a Decade
Puka Nacua

Delivers Career-Best Performance on Thursday Night Football
Michael King

Padres Bring Michael King Back on Three-Year Deal
Logan Webb

Will Pitch for Team USA in World Baseball Classic
Tarik Skubal

Joins Team USA for World Baseball Classic
Jakobi Meyers

Jaguars Agree to Three-Year Extension With Jakobi Meyers
Davante Adams

Officially Out on Thursday Night
CFB

Will Muschamp Becoming Next Texas Defensive Coordinator
CFB

Beau Pribula Set to Enter Transfer Portal
Bo Bichette

Willing to Make the Move to Second Base
CFB

Jeremiyah Love Officially Heading to NFL Draft
CFB

Jake Merklinger Leaving Tennessee for Transfer Portal
Mike Trout

Angels Open to Mike Trout Playing Center Field in 2026
CFB

Kansas State's Jayce Brown Intends to Transfer
CFB

Nation's Leading Passer Drew Mestemaker to Enter Transfer Portal
Justin Crawford

Phillies Planning to Start Justin Crawford in Center Field
CFB

Jayden Maiava Signs New Deal to Return to USC
CFB

Aidan Mizell Won't Return to Florida, Entering Transfer Portal
CFB

East Carolina Targeting Jordan Davis as Next Offensive Coordinator
CFB

Michigan QB Jadyn Davis Set to Enter Transfer Portal
CFB

Travis Williams Joining Texas A&M Defensive Staff
CFB

Dylan Raiola Entering His Name into Transfer Portal
CFB

Cincinnati's Brendan Sorsby Plans to Transfer When Portal Opens
Adolis García

Adolis Garcia, Phillies Finalizing One-Year Deal on Monday
Brandon Royval

Suffers First-Round TKO Loss
CFB

Baylor, LSU, Miami Among Potential Suitors for DJ Lagway
CFB

Aidan Chiles Will Enter Transfer Portal
Manel Kape

Shines At UFC Vegas 112
Kevin Vallejos

Gets Second-Round Knockout Win
Giga Chikadze

Suffers His First Career Knockout Loss
CFB

Quarterback DJ Lagway Entering Transfer Portal
Cesar Almeida

Gets Dominated
Cezary Oleksiejczuk

Wins Sixth Fight In A Row
Morgan Charrière

Morgan Charriere Suffers First-Round Knockout Loss
Melquizael Costa

Gets First-Round Knockout Win
Marcus Buchecha

Still Winless In The UFC
Kennedy Nzechukwu

And Marcus Buchecha Fight To Draw
Lance Gibson jr

Lance Gibson Jr. Drops Decision In His UFC Debut
King Green

Gets Back In The Win Column

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