👉 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

Kevin Durant

Becomes First Player to Make All-NBA Team With Five Franchises
Shai Gilgeous-Alexander

Victor Wembanyama Lead All-NBA First Team
Taylor Hall

Enjoying Life in Carolina
Mark Stone

Returns to Action Sunday
Cale Makar

Rejoins Avalanche Lineup Sunday
Cason Wallace

Joins Starting Unit Sunday
De'Aaron Fox

Doesn't "Feel Great" Entering Game 4
Jalen Williams

Won't Play Sunday
Christian Watson

Is Christian Watson on the Verge of a Legitimate Breakout?
Khalil Shakir

Dynasty Value in Decline
Travis Hunter

Still a Risky Buy Even at His Sunken Dynasty Cost
Gunnar Helm

a Dynasty Sleeper with Room to Grow
Drake Maye

Is Drake Maye Becoming the Most Valuable Player in Superflex Dynasty Leagues?
Vladimir Guerrero Jr.

Exits Sunday's Game Early with Elbow Contusion
MLB

Reds-Cardinals Game Postponed on Sunday
Denny Hamlin

the Favorite to Win at Charlotte
Tyler Reddick

on Pole for Coca-Cola 600
Christopher Bell

Could Break Out of Slump
Kyle Larson

May have A Solid Day at Charlotte
Ryan Blaney

Is A DFS Risk for Charlotte Lineups
William Byron

Could have A Great DFS Performance at Charlotte
Chase Briscoe

Is A Solid Tournament Option for Charlotte DFS Lineups
Pat Freiermuth

Steelers Restructure Pat Freiermuth's Contract
Ty Gibbs

May not be Worth his Salary for Charlotte DFS Lineups
Chris Buescher

May be a Sneaky Tournament Option for Charlotte Lineups
NASCAR

Bubba Wallace Has Favorable Upside for Charlotte DFS Lineups
Ross Chastain

Is A Strong Addition for DFS Lineups at Charlotte
Austin Dillon

Should Fantasy Managers Roster Austin Dillon for Charlotte DFS Lineups?
Chase Elliott

Should Be Strong at Charlotte
Carson Hocevar

Confident for Coca-Cola 600
Corey Heim

a Chalk DFS Pick at Charlotte
Michael McDowell

Is Michael McDowell A Tournament Option for Charlotte Lineups?
Jordan Mason

a Short-Term Dynasty Depth Piece
Dontayvion Wicks

Can Dontayvion Wicks Stand Out in Another Crowded Offense?
Chuba Hubbard

Dynasty Value Back on the Rise
Juwan Johnson

an Overlooked Buy Candidate for Contending Dynasty Managers
Kimani Vidal

Easily Acquirable as a High-Value Insurance Back
Evan Mobley

Tallies Series-High 24 Points on Saturday
Donovan Mitchell

Struggles at the Line Saturday
Karl-Anthony Towns

Continues Playmaking Surge on Saturday
OG Anunoby

Delivers Clean Shooting Line Saturday
Mikal Bridges

Fills Box Score in Game 3 Win
Jalen Brunson

Pushes Knicks Closer to NBA Finals
Orlando Magic

Magic Interview Jeff Van Gundy for Head-Coaching Position
Phillip Danault

Extends Point Streak to Three Games
Josh Anderson

Nets Two Goals in Painful Loss
Jalen Chatfield

Delivers Two Assists in Crucial Win
Mark Jankowski

Contributes Two Assists in Game 2 Victory
Eric Robinson

Scores in Second Consecutive Game
Nikolaj Ehlers

Tallies Two Goals as Hurricanes Bounce Back Saturday
Giannis Antetokounmpo

Magic Reportedly Have Giannis Antetokounmpo on Their Radar
Ajay Mitchell

Won't Play Sunday
Dylan Harper

Not on Injury Report for Game 4
De'Aaron Fox

Off the Injury Report Ahead of Game 4
Jalen Williams

Questionable for Sunday Night
Ja'Tavion Sanders

a Dynasty Dart Throw With Potential Untapped Upside
Geno Smith

a Low-Cost Dynasty Add Who Still Comes with Risk
C.J. Stroud

Still a Capable and Undervalued Dynasty QB2
Bhayshul Tuten

More Big Plays in 2026 Could Transform Bhayshul Tuten into a Dynasty Steal
Joe Mixon

Is Joe Mixon's NFL Career Over?
MLB

Orioles-Tigers Game Postponed on Saturday
RJ Harvey

to be Relegated to Third-Down Role After Rookie RB Addition?
Baker Mayfield

A Lot of Uncertainty Surrounding Baker Mayfield Going into Fourth Year in Tampa
Brian Robinson Jr.

a Must-Have Handcuff in Dynasty Leagues?
Sam LaPorta

Could be Excellent Buy-Low Candidate for Risk-Tolerant Managers
Jordyn Tyson

on a "Maintenance Plan" During Offseason Workouts
MLB

Rays-Yankees Postponed on Saturday
Devin Vassell

Posts 20 Points in Game 3 Loss
De'Aaron Fox

Struggles From Deep in Friday's Loss
Victor Wembanyama

Held to Four Rebounds in Game 3 Loss
Jaylin Williams

Catches Fire From Deep Friday
Nazem Kadri

Contributes an Assist in Losing Effort
Ross Colton

Nets Lone Avalanche Goal Friday Night
Rasmus Andersson

Extends Assist Streak to Four Games
Pavel Dorofeyev

Focuses on Playmaking in Friday's Win
Jack Eichel

Enjoys Multi-Point Outing in Game 2 Win Friday
Ivan Barbashev

Amasses Three Points as Golden Knights Grab 2-0 Series Lead
Mickey Moniak

Heads to Injured List With Ankle Sprain
Frederik Andersen

Hurricanes Keep Faith in Frederik Andersen
Devon Levi

Attracting Interest From Senators
Scott Wedgewood

Starting Game 2 Against Golden Knights
Ben Hutton

Scratched for Game 2 Against Avalanche
Mark Stone

Won't Play Friday
Jackson Merrill

has Sore Ribs, Expected to Avoid Injured List
Cale Makar

Remains Out Friday
CFB

Jaron-Keawe Sagapolutele Looking to Take Sophomore Leap
CFB

Jadan Baugh Primed to Lead Florida Offense in 2026
CFB

LSU Hires Ed Orgeron As Special Assistant
CFB

North Carolina and South Carolina Cancel Home-And-Home Series
CFB

Confidence High in Mississippi State's Kamario Taylor
MLB

Reds-Cardinals Game Postponed on Friday
Trevor Story

has Hernia Surgery, Expected to Miss 6-10 Weeks
Roman Anthony

Dealing With Sprained Ligament in his Finger
Ronald Acuña Jr.

Ronald Acuna Jr. Exits Early, X-Rays Come Back Negative
Robby Snelling

Will Undergo Tommy John Surgery
Jackson Merrill

Tweaks his Back on Wednesday, Pulled Early
CFB

Lincoln Riley Believes USC is Ready for Playoff Run
CFB

Notre Dame-Stanford Rivalry Renewed Through 2028
CFB

Ahmad Hardy Says He's "Back to the Road to Success"
CFB

Texas Tech Graduate Judge Recuses Himself from Brendan Sorsby Case
CFB

UCLA Tackle Jordan Davis Officially Eligible for 2026 Season
CFB

Bret Bielema Supports Significant College Football Playoff Expansion
Michael Thorbjornsen

Brings High Upside to CJ Cup Byron Nelson
Luke List

Carrying Poor Form Into CJ Cup Byron Nelson
Tom Kim

Hoping to Build on Strong Myrtle Beach Finish
PGA

Sungjae Im Brings Upside to TPC Craig Ranch
Billy Horschel

Looking for Turnaround at CJ Cup Byron Nelson
Adam Hadwin

Difficult to Trust at TPC Craig Ranch
Tony Finau

Looking for Consistency at TPC Craig Ranch
Luke Clanton

Searching for Form at CJ Cup Byron Nelson
Aaron Rai

Withdraws From CJ Cup Byron Nelson
Wyndham Clark

Can Wyndham Clark Find Form at CJ Cup?
Si Woo Kim

Looks To Stay Hot at CJ Cup
Scottie Scheffler

to Defend CJ Cup Byron Nelson Title This Week
Jordan Spieth

Looking For Victory at TPC Craig Ranch
PGA

Matti Schmid Looks to Keep Recent Momentum Going at TPC Craig Ranch
Brooks Koepka

a High-Upside Play at CJ Cup Byron Nelson
Yandy Díaz

Yandy Diaz Exits Early on Tuesday After Being Hit By Pitch
Chris Kirk

Continues Search For Putting Form at TPC Craig Ranch
Rasmus Hojgaard

Looking to Shake Off Poor Major Showing at TPC Craig Ranch
Joel Dahmen

is of No DFS Consideration This Week in Dallas
Pierceson Coody

is Not The Fun DFS Play He Used to Be
Gerrit Cole

to Make Season Debut on Friday Against Rays
Drake Baldwin

Braves Place Drake Baldwin on Injured List With Oblique Strain
CFB

Ezavier Crowell has Immediate Opportunity at Alabama
CFB

Mark Bowman a Day 1 Impact Player for USC?
CFB

Bill Belichick Says Relationship with First North Carolina Team "Wasn't Great"
CFB

Kemario Taylor a Breakout Candidate at Quarterback
CFB

Trinidad Chambliss the Undisputed Top SEC Quarterback Entering 2026?
CFB

Rocco Becht The "Unifier" of Penn State's Roster
Jackson Holliday

Orioles Reinstate Jackson Holliday From Injured List on Monday
Ronald Acuña Jr.

Braves Reinstate Ronald Acuna Jr. From Injured List on Monday
Jose Altuve

Astros Put Jose Altuve on Injured List With Oblique Strain
RANKINGS
C
1B
2B
3B
SS
OF
SP
RP

RANKINGS

QB
RB
WR
TE
K
DEF