👉 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


Buy or Sell - Undervalued and Overvalued Players for Week 21

Pierre Camus takes a look at players who may be overvalued or undervalued in MLB week 21. These players could be buy or sell candidates for the 2018 fantasy baseball season.

Trade deadline passed? That doesn't mean you can't still buy and sell! Instead of trading assets with other owners, you can "buy" players that have been overlooked or recently discarded on the waiver wire. In this case, think of it as a short-term investment that comes at a low cost (you did save at least a couple bucks of FAAB for the final month, right?)

Rather than trade candidates, I'll focus on players that appear to be trending up or down, but could soon be headed in opposite directions. In other words, we'll find some undervalued and overvalued players for you to target in free agency, or the trade market if your league still allows.

As always, I will never advocate that you buy or sell a player if I wouldn't follow the same advice myself. Now, time to assess some fantasy values.

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

 

Undervalued Players - Week 21

Ian Kinsler (2B, BOS) 51% owned

Fresh off the DL, Kinsler has been somewhat forgotten despite moving to a major market team in the thick of a pennant race. Dustin Pedroia has been rehabbing all year and shouldn't be a concern at this point, so put your faith in Kinsler instead. He is off to a decent start in his first few games with Boston, but more importantly, he is batting fifth or sixth in the lineup, just behind MVP J.D. Martinez on some nights. He's only batting .241 on the season, but a .240 BABIP has room to grow. True, his hard hit rate is down from the last couple of seasons, but that and his other peripherals have seen even lower rates, but with greater success across major categories. A reinvigorated Kinsler could easily become a viable middle infield option in fantasy leagues the rest of the season.

Adalberto Mondesi (2B/SS, KC) 15% owned

You need steals, Mondesi is your new man. He's swiped 11 bags since the second half started with a decent .273 average. There is concern over an anemic 2.8% walk rate and little in his minor league past to suggest that will change, but when he does find his way on base, likely via single, he'll have free reign to run. Kansas City is eighth in SB attempts per game, but that rate is climbing in the second half. I've previously recommended Mallex Smith (and still do), but Mondesi is a bit more appealing since he slots in at the middle infield spot.

Harrison Bader (OF, STL) 23% owned

Despite earning an everyday role in the Cards' outfield and heading toward a 15/15 season, Bader is lightly owned across fantasy leagues. His plate discpline needs some improvement, but that's to be expected for a young player in his first full-time job. Bader is posting a 27.7% line drive rate - a positive sign that he can consistently make solid contact without relying on the home run ball to provide value. He never stole more than 15 bases in a minor-league season, mainly due to a low success rate, but if the team is going to let him run then he could continue to be a pleasant surprise in the area.

German Marquez (SP, COL) 38% owned

It's always a risky proposition trusting a Rockies pitcher, but Marquez is stringing together enough solid starts to convince me he can keep it up. He was a solid add early this season, but found trouble in June with a 6.75 ERA. Since then, he's settled down quite a bit, especially in terms of home runs allowed. Marquez has given up 20 HR on the year, but has limited the damage to three HR in the last 33.2 innings. He's figured out how to pitch in Coors clearly, as he ranks 20th among qualified starts in groundball rate at 47.5%. His best asset is that he presents high-strikeout upside, ranking 18th among qualified pitchers with a 9.69 K/9 already. There's always risk for a rough start if his gopheritis returns, but he's on a roll and is worth a shot given the potential to help in nearly every category.

 

Overvalued Players - Week 21

Ryan Zimmerman (1B, WAS) 60% owned

I'll keep this simple - I don't trust Zimmerman. He's been hot ever since returning from the DL, hitting .309 with five HR and 20 RBI in 21 games; the question is how long will it last? 2017 was an outlier in the sense that he hadn't played anything close to a full season since 2013. Once again, he's been back and forth to the disabled list and could break down at any time. The main thing to know about Zimmerman is that he does almost all his damage against left-handers, hitting .400 with a 9/9 BB/K and just as many homers in half as many at-bats than against right-handers. He bats just .188 with an 8/28 BB/K vs RHP. Zimmerman is a great daily play in the right matchups, but a risky player to rely on in weekly H2H leagues.

Ryan Braun (OF, MIL) 62% owned

The former MVP has shown flashes of his old self lately, swiping two bases in a game last week and jacking two homers in a game just days ago. Now injuries are rearing their ugly head again, as he is experiencing tightness in his ribcage. While not a serious injury, it's one that could affect his swing. For a 34-year-old that has already missed 34 games this year, it also doesn't bode well for his playing time. Between the Brewers' pre-trade deadline acquisitions and the emergence of Jesus Aguilar, Braun's bat isn't needed in lineup anymore; he can be benched in most leagues and dropped if need be.

Lance Lynn (SP, NYY) 59% owned

The honeymoon is over. Lynn pitched inspired ball after his move to the Yankees, allowing just one earned run in his first three starts. His last time out was a disaster, as he gave up five runs in four innings to the Blue Jays. This might seem like over-reaction to one bad start, but let's put things into perspective. Despite a solid 9.29 K/9 this season, Lynn is walking over five batters per nine and owns a 1.56 WHIP. His swinging strike rate is the highest it has ever been at 10.1%, but his first strike percentage has been dropping for four straight seasons, from 63.3% in 2013 down to 53.4% this year (he didn't pitch in 2016). He moves to a superior team, which should make for more win opportunities, but is facing AL East teams in the confines of Yankee Stadium half the time going to improve his ratios? I think not. Lynn's got the Marlins on tap next, which makes for a must-start in all formats, but it might be a good time to sell (or consider benching) shortly after.

More Risers and Fallers




REAL-TIME FANTASY NEWS

Chris Rodriguez Jr.

Is Chris Rodriguez Jr. Falling Behind in Jaguars Running Back Battle?
Edmen Shahbazyan

Suffers Unanimous Decision Loss
Edmen Shahbazyan

Brendan Allen Gets Unanimous Decision Win Over Edmen Shahbazyan
Drew Allar

a Smart Stash in the Middle Rounds of Dynasty Rookie Drafts
Chris Olave

Still a High-Upside Dynasty Swing for the Risk Tolerant
Tom Nolan

Extends Win Streak
Farés Ziam

Fares Ziam Drops Decision At UFC Vegas 118
Jayden Higgins

"Going to Have a Great Year"
Jacoby Brissett

Expected to Report to Minicamp
Tarik Skubal

Dominates in Rehab Start, Return Appears Imminent
Mitchell Robinson

Available for Game 3
Chicago Bulls

Bulls Hire Alex Kaufman as Windy City Bulls General Manager
E.J. Liddell

Agrees to Two-Year Deal with Greek Club Aris
Konnor Griffin

is Looking at Extended Absence
Matas Buzelis

Will Play for Lithuania This Summer
Kenley Jansen

to Begin Rehab Assignment on Tuesday
Giannis Antetokounmpo

Has Concerns About Heat Roster If Traded to Miami
Casey Mize

to Make Rehab Start on Tuesday
Bobby Witt Jr.

Exits Early with Knee Soreness
Mitchell Robinson

Has Technical Foul Rescinded After Game 2 Win
Jarquez Hunter

Is it Time for Dynasty Managers to Move on From Jarquez Hunter?
Elijah Arroyo

Worth Buying Low on in Dynasty Formats?
Tre Tucker

Profiles as a Dynasty Sell-High Candidate Entering 2026
Jack Bech

Should Dynasty Managers Target Jack Bech as a Buy-Low Candidate?
Jaydon Blue

a Dynasty Buy-Low Candidate After Underwhelming Rookie Year?
Saquon Barkley

in Line for Larger Pass-Catching Role in 2026?
Max Fried

Nearing Return to Mound Work?
Karl-Anthony Towns

Eligible for Massive Extension
Isaiah Stewart

Could Draw Trade Interest
Chase Briscoe

Is Chase Briscoe Worth Rostering for DFS at Michigan?
Philadelphia 76ers

Jameer Nelson Promoted to Executive Vice President
Domantas Sabonis

Could be Traded This Summer
Ty Gibbs

Is Ty Gibbs Worth Rostering at Michigan This Week for DFS?
William Byron

Will Start at the Rear at Michigan After Unapproved Adjustments
NASCAR

Should DFS Managers Roster Bubba Wallace at Michigan?
Joey Logano

Is Joey Logano Worth Rostering In DFS Lineups for Michigan
Daniel Suarez

Might Have Tournament Appeal for Michigan DFS Lineups
Jonah Coleman

Is Jonah Coleman the Most Valuable Broncos Running Back in Dynasty Leagues?
William Carrier

Suffers Upper-Body Injury in Game 3 Versus Golden Knights
Darius Slayton

Will Darius Slayton Be Phased Out of New-Look Giants Offense?
Sebastian Aho

Records Two Assists in Losing Effort
Alex Lange

Earns Third Save, Quickly Entering Must-Roster Status
Keaton Mitchell

Can Keaton Mitchell Carve Out a Large Enough Role for a Fantasy Breakout?
Jordan Staal

Scores in Third Consecutive Game
Shea Theodore

Caps Multi-Point Effort With Game-Winning Goal Saturday
Kayshon Boutte

Will Attend Mandatory Minicamp
Denny Hamlin

Puts DFS Managers in Tough Spot for Michigan
Chase Elliott

Can Chase Elliott Get Back to His Old Ways at Michigan?
Chris Buescher

Looking for Another Solid Run at Michigan
Tomas Hertl

Collects Two Points in Overtime Win
Jonathon Brooks

to Be Carolina's Lead Back in 2026?
Carson Hocevar

Qualifies Second, Seeking Redemption at Michigan
Ross Chastain

Can DFS Managers Trust Ross Chastain at Michigan?
Mitch Marner

Scores Fastest Hat Trick in Finals History
Brad Keselowski

Has Been Solid at Michigan
Will Smith

Scratched With Neck Stiffness, Expected to Return on Sunday
Kenneth Gainwell

Standing Out at OTAs
Bhayshul Tuten

"Picking Up Steam," More in-Tune With New Scheme
Auston Matthews

Maple Leafs Confident of Keeping Auston Matthews
Andrei Vasilevskiy

Wins Second Vezina Trophy
Brayden McNabb

Uncertain for Game 3 Against Hurricanes
Jadarian Price

Is Jadarian Price Still Undervalued in Dynasty Formats?
Isaiah Bond

Is Isaiah Bond Still Worthy of a Dynasty Roster Spot?
Michael Pittman Jr.

Dynasty Outlook Clouded by Long-Term QB Uncertainty
Hunter Greene

Could Return Before the All-Star Break
Dylan Harper

Remains a Bright Spot for San Antonio
De'Aaron Fox

Shoots Well in a Loss to the Knicks
Victor Wembanyama

Scores 29 Points in Game 2 Loss
OG Anunoby

Anchors Knicks' Defense in Finals Game 2
Mikal Bridges

Helps Knicks Secure a Game 2 Victory
Karl-Anthony Towns

Records Another Finals Double-Double
Jalen Brunson

Overcomes Cold Night to Seal Game 2
Michael Harris II

Dealing With Back Tightness, Not Believed to be Serious
Byron Buxton

Suffers Shoulder Contusion After Colliding With the Wall
Sacramento Kings

Kings Want to Trade Their Larger Contracts
Chicago Bulls

Darius Acuff Jr. Works Out for Bulls
Jaime Jaquez Jr.

Could Get Traded
MIN

Marcus Johansson Returning to Europe
Thomas White

Likely to Miss Rest of Season With Shoulder Capsular Sprain
Mitchell Robinson

is Upgraded to Available for Game 2
Cole Caufield

Earns Lady Byng Trophy
Nick Suzuki

Lands Selke Trophy
Jose Altuve

Astros Reinstate Jose Altuve From the Injured List
CFB

Reed Harris Hoping to Fill Void in Arizona State Receiving Room
CFB

Nick Marsh Gearing Up for Breakout
CFB

Drew Mestemaker Looking to Catapult Oklahoma State Offense in 2026
CFB

Rocco Becht Brings Experience to New-Look Nittany Lions
CFB

Can Trey White, Adam Trick Keep Texas Tech's Defensive Front Elite?
CFB

Devon Dampier is Key to Success for Morgan Scalley in Year 1
Aaron Judge

Yankees Officially Place Aaron Judge on Injured List With Fractured Rib
Francisco Lindor

Expected to Return in "About a Couple Weeks"
Corey Seager

Rangers Activate Corey Seager From the Injured List
Gabriel Bonfim

Set For UFC Vegas 118 Main Event
Belal Muhammad

In Dire Need Of Win
Edmen Shahbazyan

An Underdog At UFC Vegas 118
Shayne Gostisbehere

Dishes Out Two Power-Play Assists in Comeback Win
Brendan Allen

Looks For His Third Win In A Row
Seth Jarvis

Ties Finals With Power-Play Goal
Mark Stone

Scores Sixth Playoff Goal in Overtime Defeat
Tom Nolan

Searches For His Fifth Consecutive Win
Mitch Marner

Records Two Assists in Game 2 Loss
Farés Ziam

Fares Ziam A Favorite At UFC Vegas 118
Brett Howden

Matches Franchise Record With Another Productive Outing
Brayden McNabb

Hospitalized After Taking Puck to Face
Aaron Judge

Diagnosed with Stress Fracture, Out 4-6 Weeks
Shohei Ohtani

has "Small" Blister, a "Non-Issue" for his Pitching Starts
Brent Rooker

Out on Thursday Due to Knee Soreness
Frederik Andersen

Hurricanes Retain Confidence in Frederik Andersen
Vincent Trocheck

Maple Leafs Interested in Vincent Trocheck
Dylan Larkin

Requests Trade From Red Wings
Corey Seager

Expected to Return This Weekend
Lucas Erceg

Royals to Mix and Match in Ninth With Lucas Erceg Struggling
Rickie Fowler

Looks To Continue Resurgent Season At Memorial
CFB

Can Eric Singleton Jr. Fully Break Out at Third School?
CFB

Katin Houser Steps into QB1 Role for Illinois
CFB

Savion Hiter an Immediate Impact Freshman for Michigan
CFB

Isaiah Horton Set to Take Over KC Concepcion's Role
CFB

UCLA Transfer Karson Gordon Signs with Austin Peay
CFB

Will Muschamp Bringing New Intensity to Texas Practices
Gary Woodland

Brings Boom-or-Bust Potential to Memorial
Jordan Spieth

Still Searching for a Breakthrough
Alex Smalley

Brings Elite Form to Memorial Tournament
Justin Rose

Looks to Recapture Memorial Tournament Success
Cameron Young

Looks to Get Back to His Contending Ways at Murifield Village
Chris Gotterup

Needs to Find Fairways at Muirfield Village
Si Woo Kim

Looks to Stay Hot at Memorial Tournament
Matt Fitzpatrick

Positioned for Success at Muirfield Village
Keegan Bradley

Looking for Another Strong Finish at Muirfield
Justin Thomas

is an Exciting Play This Week in Ohio
Scottie Scheffler

Looks to Win Memorial Tournament for Third Consecutive Year
Rory McIlroy

Looking for Better Performance at Muirfield Village
Russell Henley

Coming to Ohio on the Heels of Latest Victory
Tommy Fleetwood

Looking for Better Iron Play at Memorial Tournament
Patrick Cantlay

Looks to Continue Dominance at Muirfield Village
Ludvig Aberg

a Great Fit for Muirfield Village
CFB

SEC Coach Calls Buster Faulkner a "Home-Run Hire"
CFB

Auburn a Sleeper in the SEC Under Alex Golesh?
CFB

Noah Fifita Primed for Strong 2026 Campaign
RANKINGS
C
1B
2B
3B
SS
OF
SP
RP

RANKINGS

QB
RB
WR
TE
K
DEF