👉 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

Michael Wilson

Cardinals Interested in Inking Michael Wilson to a Long-Term Extension
Kyle Williams

Bulks Up, Ready to Make Year 2 Leap
Deshaun Watson

the First QB Up During OTA Drills on Wednesday
Quinshon Judkins

Taking Part in 11-on-11 Drills
Xavier Legette

Fighting for His Future in Carolina?
Brian Thomas Jr.

Jaguars Not Expected to Trade Brian Thomas Jr.
Rashod Bateman

Future in Baltimore is Bleak
Mark Andrews

Poised to Bounce Back in 2026?
Tyrone Tracy Jr.

Is Tyrone Tracy Jr. a Sneaky Dynasty Buy?
Chimere Dike

Dynasty Managers Compelled to Hold Chimere Dike?
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
Jameson Williams

a High-Ceiling Buy for Risk-Tolerant Dynasty Managers
Adam Hadwin

Difficult to Trust at TPC Craig Ranch
Chase Brown

a Short-term Dynasty Buy Whose Value Could Extend Beyond 2026
Tony Finau

Looking for Consistency at TPC Craig Ranch
J.K. Dobbins

Becoming an Underpriced Starting Running Back
Luke Clanton

Searching for Form at CJ Cup Byron Nelson
Rome Odunze

Has Ambiguity Among Bears WRs Created Buying Opportunity for Rome Odunze?
Aaron Rai

Withdraws From CJ Cup Byron Nelson
Wyndham Clark

Can Wyndham Clark Find Form at CJ Cup?
Marvin Mims Jr.

Dynasty Value Hurt by Lack of a Defined Role
Si Woo Kim

Looks To Stay Hot at CJ Cup
James Harden

Struggles in Eastern Conference Finals Opener
Evan Mobley

Bags Second Consecutive Double-Double
Donovan Mitchell

Produces Top Two-Way Performance in Game 1 Loss
OG Anunoby

Plays Key Role in Comeback Win
Mikal Bridges

Remains Efficient in Game 1 Against Cavaliers
Karl-Anthony Towns

Extends Double-Double Streak to Four Games
Jalen Brunson

Leads Knicks to Historic Comeback Win
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
Philadelphia Eagles

Eagles Offense to Borrow From Kyle Shanahan, Sean McVay in 2026?
Taysom Hill

Saints Haven't Offered a Contract to Taysom Hill
Kayshon Boutte

Working Out Away From the Team
Lamar Jackson

Expected to Return to OTAs Soon
Dalton Kincaid

Taking Part in OTAs This Week
Josh Allen

"Good to Go" for Offseason Workouts
Yandy Díaz

Yandy Diaz Exits Early on Tuesday After Being Hit By Pitch
Dean Wade

Returns to Starting Unit Tuesday
OG Anunoby

Starting on Tuesday
Tobias Harris

May Remain in Motown
Jalen Duren

Pistons Eager to Keep Jalen Duren
Chris Kirk

Continues Search For Putting Form at TPC Craig Ranch
Dallas Mavericks

Jason Kidd Fired as Mavericks Head Coach
De'Aaron Fox

Officially Listed as Questionable for Game 2 Against Thunder
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"
Alex Caruso

Erupts for 31 Points in Game 1 Loss to Spurs
CFB

Kemario Taylor a Breakout Candidate at Quarterback
Jalen Williams

Productive in Comeback Game
CFB

Trinidad Chambliss the Undisputed Top SEC Quarterback Entering 2026?
Shai Gilgeous-Alexander

Records First Double-Double of Postseason
CFB

Rocco Becht The "Unifier" of Penn State's Roster
Stephon Castle

Opens Conference Finals With Double-Double
Dylan Harper

Makes Outstanding Two-Way Impact in Game 1 Win
Victor Wembanyama

Dominates Game 1 Against Thunder
Mattias Samuelsson

Picks Up an Assist in Season-Ending Loss
Rasmus Dahlin

Nets Fourth Postseason Goal
Jakub Dobes

Records 37 Saves in Game 7 Win
Lane Hutson

Contributes Power-Play Assist in Game 7 Victory
Nick Suzuki

Extends Road Point Streak
Alex Newhook

Scores Series-Clincher in Overtime
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
Larry Nance Jr.

is Questionable for Game 1 on Tuesday
OG Anunoby

is Probable for Tuesday's Game 1
Ukko-Pekka Luukkonen

Set to Start Game 7
Corey Seager

Going on Injured List With Back Injury
Tage Thompson

Can Match Franchise Record With Another Multi-Point Game
Nick Suzuki

Seeks More Road Success Monday
Lane Hutson

Riding a Five-Game Assist Streak Into Game 7
Filip Gustavsson

Needs Offseason Surgery
Jeremy Peña

Jeremy Pena Reinstated and Starting on Monday Against Twins
Melquizael Costa

Drops Decision At UFC Vegas 117
Arnold Allen

Bounces Back
Daniel Santos

Suffers Second-Round TKO Loss
MMA

Dohoo Choi Wins His Third Consecutive Fight
Malcolm Wellmaker

Suffers His Second Loss In A Row
Juan Diaz

Scores Second-Round Submission
Christian Edwards

Defeated At UFC Vegas 117
CFB

Transfer Running Back Arnold Barnes Visiting Iowa State on Monday
Modestas Bukauskas

Gets Split-Decision Win
Jhostynxon Garcia

Expected to Join the Pirates on Tuesday
Quinn Hughes

Open to Signing Extension This Offseason
Joel Eriksson Ek

Misses Second Round Due to Heel Injury
Jonas Brodin

Sits Out Round 2 Due to Toe Injury
Sam Malinski

Practices Fully Sunday
Josh Manson

Rejoins Practice
Colt Emerson

Mariners Promoting Top Prospect Colt Emerson to Major Leagues
Munetaka Murakami

Fantastic First Season Continues With Two More Homers
Cristopher Sánchez

Cristopher Sanchez Dazzles With 13-Strikeout Complete Game on Saturday
Blake Snell

to Undergo Elbow Surgery on Tuesday
Clay Holmes

Could Miss Around Three Months
Jose Altuve

Exits After Swing
Corey Seager

Absent With Back Spasms on Saturday
Jeremy Lauzon

Misses Saturday's Practice
Mark Stone

Doesn't Practice Saturday
Josh Manson

Misses Practice, Considered Day-to-Day
Brent Burns

Day-to-Day Ahead of Conference Finals
Cale Makar

Considered Day-to-Day
Trevor Story

Hits the Injured List With Groin Injury
Blake Snell

Likely to Need Elbow Surgery
Kyle Schwarber

on a Heater, Hits Two More Homers to Take Major-League Lead
Clay Holmes

Suffers Fractured Fibula on Friday Night
Blake Snell

Heads to 15-Day Injured List
CFB

Julian Sayin Looking To Build Off Of Strong Debut Season
CFB

College GameDay Set for First Three Weeks
CFB

Jeremiah Smith Aiming For Ohio State Receiving Records
CFB

Keshaun Singleton Projects as Auburn's WR1
CFB

Jeremiah Cobb Impresses New Auburn Staff
CFB

Alberto Mendoza Very Likely to Start for Georgia Tech
CFB

Charles Woodson Jr. Commits to Michigan
Melquizael Costa

Set For UFC Vegas 117 Main Event
Arnold Allen

A Favorite At UFC Vegas 117
Daniel Santos

Set For UFC Vegas 117 Co-Main Event
MMA

Dohoo Choi Returns At UFC Vegas 117
Juan Diaz

Set To Make His UFC Debut
Malcolm Wellmaker

Looks To Bounce Back
Christian Edwards

Set For His UFC Debut
Modestas Bukauskas

Looks To Get Back In The Win Column
RANKINGS
C
1B
2B
3B
SS
OF
SP
RP

RANKINGS

QB
RB
WR
TE
K
DEF