👉 TAP TO SAVE 30% WITH CODE NEW
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


POPULAR FANTASY TOOLS

Expert Advice
Articles & Tools
Import Your Leagues
Draft Rankings
Draft Simulator
Enter League Settings
Compare Any Players
Rookies & Call-Ups
24x7 News and Alerts

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.

Be sure to check all of our fantasy baseball draft tools and resources:

 

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




POPULAR FANTASY TOOLS

Expert Advice
Articles & Tools
Import Your Leagues
Draft Rankings
Draft Simulator
Enter League Settings
Compare Any Players
Rookies & Call-Ups
24x7 News and Alerts

REAL-TIME FANTASY NEWS

Kevin Porter Jr.

Questionable Against Hawks
Devin Carter

Out Saturday Against Clippers
Russell Westbrook

Set to Return Against Clippers
Derrick White

Expected to Play Saturday Against Wizards
Michael Porter Jr.

Likely to Miss Second Straight Game
Nicolas Claxton

to Rest Saturday Against Philadelphia
Ace Bailey

Leaves Friday's Game Early with Concussion
Radko Gudas

Handed a Five-Game Suspension
Auston Matthews

to Miss Rest of Season
Tory Horton

Faces Stiff Target Competition Again
Kaleb Johnson

a Cut Candidate in Dynasty Leagues?
DK Metcalf

Has More Competition for Targets in Pittsburgh
Trey McBride

to Repeat Incredible Season with Quarterback Returning?
Mark Andrews

Set Up for a Productive 2026 Season?
Giannis Antetokounmpo

Could Miss Saturday's Game Vs. Hawks
Keegan Murray

to Be Re-Evaluated in Two Weeks
Aaron Gordon

Expected Back Saturday Vs. Lakers
Jamal Murray

Expected to Suit Up Saturday
Collin Sexton

to Miss Third Straight Game
Jalen Smith

is Ruled Out for Friday's Game
Robert Williams III

is Unavailable for Friday's Contest
Cameron Ward

Cleared to Throw the Football
Draymond Green

is Downgraded to Out on Friday
De'Anthony Melton

to Play on Friday
Ayo Dosunmu

is Cleared for Friday's Game
Anthony Edwards

is Available on Friday
Roger McCreary

Lions Agree With Roger McCreary on One-Year Deal
Andre Cisco

Jets Agree With Andre Cisco on One-Year Deal
Geno Stone

Bills, Safety Geno Stone Agree to One-Year Deal
A.J. Brown

Futures of A.J. Brown, Dallas Goedert With Eagles are "Interconnected"
Norman Powell

is Tagged as Questionable for Saturday
Victor Wembanyama

Questionable Saturday Vs. Hornets
Andrew Wiggins

to Miss Fifth Straight Game
Sebastian Joseph-Day

Signs Two-Year Deal With Steelers
Laquon Treadwell

Colts Re-Sign Laquon Treadwell to a One-Year Deal
Dallas Goedert

Eagles, Dallas Goedert Push Back Void Date a Second Time to Monday
A.J. Brown

Eagles "Will Not Trade A.J. Brown at This Time"
Wan'Dale Robinson

Poised for Massive Target Volume with New Team in 2026
Tyler Warren

Profiles as the Clear Lead Target-Earner in Indianapolis
Francisco Lindor

Takes Full Batting Practice on Friday
Brock Purdy

Has a New No. 1 Wide Receiver to Work With in San Francisco
Jalen McMillan

Has Breakout Potential Heading into 2026
Cam Skattebo

Can Cam Skattebo Take on a Workhorse Role in 2026?
Brandon Woodruff

Still TBD for Opening Day
Tyler Conklin

Signs One-Year Deal With Lions
Rasheed Walker

Panthers Add Left Tackle Rasheed Walker on One-Year Deal
Trevor Rogers

to Start on Opening Day for Orioles
Kevin Vallejos

Looks To Remain Undefeated In The UFC
Josh Emmett

In Dire Need Of Victory
Gillian Robertson

A Favorite At UFC Vegas 114
Amanda Lemos

Set For Co-Main Event
Oumar Sy

Looks To Win Back-To-Back Fights
Ion Cutelaba

Looks To Get Back In The Win Column
Nathan MacKinnon

Racks Up Four Points in Victory Over Kraken
Alexis Lafrenière

Alexis Lafreniere Stays Hot in Winnipeg
Semyon Varlamov

Won't Return This Season
Alexander Romanov

Could Return for Playoffs
Declan Carlile

Hurt on Thursday Night
Wyatt Kaiser

Sustains Upper-Body Injury Thursday
Erik Gudbranson

Could Be an Option Saturday
Auston Matthews

Exits Game With Injury
Jimmy Snuggerud

Scores Twice Versus Carolina
Michael Misa

Delivers Multi-Point Performance on Thursday
Blake Snell

Around Six Weeks From Being Fully Built Up
Bobby Brink

a Game-Time Decision for Meeting with Flyers
Evander Kane

Available Against Predators
Mark Stone

a Game-Time Call Thursday
Carter Verhaeghe

Anton Lundell Won't Play Thursday
Sam Reinhart

Returns to Action Thursday
Andrew Copp

to Sit Out Two Weeks
Dylan Larkin

Ruled Out for Two Weeks
Zack Wheeler

to Face Hitters in Live Batting Practice on Saturday
Gerrit Cole

Could Pitch in a Spring Game Next Week
Matthew Boyd

Named the Cubs' Opening Day Starter
Francisco Lindor

Remains on Schedule for Opening Day
Spencer Knight

Available Thursday
William Eklund

Questionable to Play Thursday
Bryce Miller

Shuts Down Bullpen Due to More Oblique Discomfort
Zac Gallen

Named Arizona's Opening Day Starter
Kyle Teel

Could Miss 4-6 Weeks With Hamstring Strain
Hideki Matsuyama

Brings Strong Course History to TPC Sawgrass
Josh Hader

to Start the Year on the Injured List
Adam Scott

in Strong Form Ahead of The Players
Kyle Teel

Exits Tuesday's Game With Hamstring Injury
Rickie Fowler

on Quite the Run Heading to TPC Sawgrass
Sepp Straka

Needs to Forget What Happened Sunday at Bay Hill
Jordan Spieth

an Enigma Heading to The Players Championship
Justin Rose

Trying to Pick Up the Pieces in Florida
Maverick McNealy

Bounces Back at Arnold Palmer Invitational
Brooks Koepka

Continues His Florida Swing With Some Momentum
Nicolai Hojgaard

in Strong Form Ahead of The Players
Robert MacIntyre

a Volatile Option at The Players
Matt Fitzpatrick

Looks to Return to Top Form at The Players
Sam Burns

a High-Risk, High-Reward Option at The Players
Keegan Bradley

Hard to Trust at The Players
Xander Schauffele

Rounding into Form Heading to Players Championship
Rory McIlroy

Set to Return at Players Championship to Defend Title
Jake Knapp

Set to Return at Players Championship
Viktor Hovland

Continues Strong Start to 2026 Season
Rasmus Hojgaard

Looking for Bounce-Back at Players Championship
Tommy Fleetwood

Will Need to Find Putter to Compete at Players Championship
Akshay Bhatia

Continues Improving Heading to Players Championship
Merrill Kelly

Set to Make Spring Training Debut on Friday
Francisco Lindor

"100 Percent Optimistic" he Can be Ready for Opening Day
Justin Thomas

Continues Competitive Return at The Players Championship
Corbin Carroll

Set to Play in Cactus League Game on Wednesday
Kyle Stowers

to Make Grapefruit League Debut on Saturday
Hunter Greene

to be Sidelined Through July
Jesús Luzardo

Jesus Luzardo, Phillies Agree on Five-Year Extension
Corbin Carroll

Could Make Spring Debut This Week
Max Holloway

Drops Decision At UFC 326
Charles Oliveira

Becomes The New BMF Champion
Caio Borralho

Bounces Back
Reinier de Ridder

Reinier De Ridder Loses Back-To-Back Fights
Rob Font

Gets Dominated
Raul Rosas Jr.

Extends His Win Streak
Michael Johnson

Suffers Second-Round Knockout Loss
Drew Dober

Knocks Out Michael Johnson
Rafael Devers

Back in Cactus League Lineup on Monday
Ryan Blaney

Earns his Second Consecutive Phoenix Cup Series Win
Christopher Bell

Falls Short of Victory Despite Dominating at Phoenix
Kyle Larson

Earns Hard-Fought Finish of Third at Phoenix
Denny Hamlin

Quietly Gains Another Top-Five Finish at Phoenix
Joey Logano

Crashes out at Phoenix Despite Strong Run
RANKINGS
C
1B
2B
3B
SS
OF
SP
RP

RANKINGS

QB
RB
WR
TE
K
DEF