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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

Alperen Sengün

Alperen Sengun Sitting Out Another Game Monday
Trae Young

Ruled Out Monday
Joe Mixon

Won't Return This Season
T.J. Watt

a Long Shot to Play in Week 18?
CFB

Penn State Working to Hire D'Anton Lynn as Next Defensive Coordinator
Joe Burrow

Will Play in Week 18 Against the Browns
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Omar Cooper Expected to be Full-Go for Rose Bowl
CFB

Marcus Freeman Staying with Notre Dame for 2026 Season
CFB

Star Wideout Cam Coleman Entering Transfer Portal
Luther Burden III

Set to Undergo Additional Testing on Quad Injury
Trae Young

Questionable Monday With Quad Contusion
Kirill Marchenko

Scores Twice in Sunday's Win
Josh Giddey

Expected to Suit Up Monday
Alperen Sengün

Alperen Sengun Could Miss Another Game Monday
Justin Brazeau

Pots First Career Hat Trick Sunday
Anthony Davis

Listed as Questionable for Monday
Juraj Slafkovsky

Collects Season-High Three Points in Sunday's Loss
Jalen Suggs

Poised to Miss Seventh Straight Game
Eeli Tolvanen

Continues Scoring Surge With Three-Point Effort
Grayson Allen

Misses Sixth Straight Game Monday
Jack Eichel

to Remain Out Monday
Adam Fox

Nearing Return, Considered Day-to-Day
Josh Morrissey

Considered Day-to-Day After Missing Practice
D'Andre Swift

Finds End Zone Twice in Sunday Night Loss
Luther Burden III

Posts Season-High 138 Yards, Touchdown in Loss
Christian McCaffrey

Racks Up 181 Total Yards, Touchdown in Win Over Bears
Brock Purdy

Delivers Second Straight Five-Touchdown Performance
De'Aaron Fox

Questionable Against the Cavaliers
Bam Adebayo

Expected Back on Monday Night
Kon Knueppel

Won't Suit Up Against Milwaukee
Ryan Kalkbrenner

Still Out on Monday
Parker Washington

Leads Jaguars in Targets, Receptions, and Receiving Yards
Wan'Dale Robinson

Posts Season-High 11 Receptions in Week 17
Josh Allen

Seen Limping From X-Ray Room, Says Foot Injury Didn't Affect Him
Geno Smith

Diagnosed With High-Ankle Sprain
John Collins

Won't Face the Pistons on Sunday Night
Trey McBride

Sets All-Time Tight End Receptions Record
Geno Smith

Exits Early With Ankle Injury
DJ Moore

Suiting Up Against 49ers on Sunday Night
Ricky Pearsall

Officially Active for Week 17 Against Bears
George Kittle

Officially Inactive for Week 17
Ja'Marr Chase

Snags Two Touchdowns in Week 17
Geno Smith

Questionable to Return With Ankle Injury
Chris Godwin Jr.

Goes Over 100 Yards in Loss to Miami
Matthew Tkachuk

Returns to Practice
Chris Olave

Extends Touchdown Streak in Win Over Titans
Linus Ullmark

Takes Leave of Absence
Travis Sanheim

Good to Go Against Kraken
Kyshawn George

Ruled Out on Sunday
Nick Foligno

Set to Return Sunday
Jock Landale

Out Again on Sunday
William Nylander

Out Against Red Wings
Jared McCann

Available Sunday
Vince Dunn

on Track to Return Sunday
Blake Lizotte

Activated From Injured Reserve
Tyler Herro

Showing Progress but Still Without Timetable
CFB

Jay Hill Expected to be Next Michigan Defensive Coordinator
Zach Collins

Exits Late With Lower-Body Injury
Chris Boucher

Ruled Out Sunday for Personal Reasons
Gabe Vincent

Out Again Sunday With Back Issue
Jrue Holiday

Remains Out Sunday Against Celtics
Collin Murray-Boyles

Unlikely to Play Sunday Due to Illness
Andrei Svechnikov

Extends Scoring Run With Three-Point Effort
Auston Matthews

Bags Three Points Saturday Night
Alex Laferriere

Records First Career Hat Trick
William Nylander

Sustains Lower-Body Injury Saturday
Zach Werenski

Unlikely to Play Sunday
Jake Evans

to Miss 4-6 Weeks
CFB

Michigan Targeting Kyle Whittingham as Next Head Coach
CFB

Texas Leading Rusher Quintrevion Wisner Set to Transfer
Pete Fairbanks

Marlins Agree on One-Year Deal
Brooks Koepka

Leaving LIV Golf
Ryan O'Hearn

Pirates Agree on Two-Year Deal

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