👉 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

#1 Expert Projections
Save 30% Now
Import Your Leagues
Top-Rated Accuracy
Draft Simulator
Enter League Settings
Compare Any Players
Rookies & Call-Ups
24x7 News and Alerts

Buy or Sell - Undervalued and Overvalued Players for Week 7

Kev Mahserejian takes a look at players who may be overvalued or undervalued in week 7. These players could be buy or sell candidates for the 2019 fantasy baseball season.

We are just over a month into the fantasy baseball season and it is a prime time to buy in on players whose production could be legit/should be better or hop off a heater before the floors caves in. As we all should know, baseball is a game of ebbs and flows. When there is too much good, expect some bad, and vice-versa.

The phrase Buy or Sell is a bit looser than it typically would be mid-season or closer to fantasy playoff time. The players covered, for the most part, are guys I am either wary of or tentatively interested in. We are walking a fine line here after the first month. Various factors play into good/bad season starts such as tough schedules with rough ballpark (or vice-versa), nagging injuries, poor team performance, and even the weather.

Do not be afraid to send out low-ball "feeler" offers to your league-mates this time of year for underperforming guys. You never know what they will take. Of course, the expectation should be that the offer is declined, but at least a potential conversation could begin. Have secondary players you are willing to throw in the deal, but also know your limits. If your mate if asking for a "stud" in return, make sure you try and upgrade elsewhere to mitigate the hit on your end. Good trades win you leagues, do not forget that. You always want to be as ahead of the curve as possible, and I am here to help with that. Let's take a look at what we've seen thus far.

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

 

Undervalued Players - Week 7

These players could be worth trying to add or acquire as long as you're not paying for preseason value. Ideally, they are just lying around on your wire and you can add them straight up or for a few extra FAAB dollars.

 

Rafael Devers - (3B, BOS)

79% owned

Rafi is so good but for some reason, his counting stats have been lacking this season. His batting average is up from last year and he is walking more and striking out less. The progress has been wonderful for the former top Red Sox' prospect who had some trouble making quality contact last season. Devers is still just 22 and has plenty of room to grow. He made significant strides in his conditioning over the offseason which may be leading to his current performance.

Although he is batting in the back half of the order, Devers has been productive and should be more-so as the year goes on. The Boston lineup is stacked with talent and Devers has more than enough juice in his bat to drive in much more than the 20 batters he has thus far. He should be owned in all leagues and is worth trading for even with his value jumping this past week.

 

Nomar Mazara - (OF, TEX)

66% owned

Nomar Mazara is underperforming like crazy. There is a massive discrepancy between his expected batting and slugging averages. He has cut his strikeouts down and managed to accrue a decent chunk of counting stats with a poor average. Mazara's BABIP is much lower than his career average while his hitting tendencies haven't changed too drastically (a few more fly balls than ground balls this year). He is hitting the ball hard more often than ever and has no competition for playing time.

Mazara is a prime buy candidate who could end the year as a .275 hitter with 30 home runs and nearly 100 RBI. His walk rate makes me uneasy for OBP leagues but those in OPS/AVG formats should be running to make offers for this Rangers' outfielder.

 

Lucas Giolito (SP, CWS)

27% owned

This former top pitching prospect may finally be coming into his own. Giolito's ERA is still above four but his strikeout rate is ELITE at nearly 30 percent. His xFIP and SIERA are both below four (good signs) and he has been decent against some solid competition like the Yankees and Red Sox. The outing that has tanked his numbers a bit was an early season outing against a red-hot Seattle team which could be chalked up as flukey.

Giolito has elite "stuff" and if he is putting it all together with improved velocity, you want to be along for the ride in most formats. Giolito's fastball was terrible last season but rates out as just about average now. His secondaries have been reliable and although his curveball has not been too effective yet, when it is, watch out. Giolito is worth the stream against Toronto today if he's still available just as a taste test. If he goes out and proves himself, keep him around for that next start. If not, no skin off your bones, just drop him and watch him for a bit (in shallower leagues).

 

Overvalued Players - Week 7

Overvalued does not always mean SELL. Players here are just showing enough red flags that warrant the overvalued tag.

 

Derek Dietrich - (1B/2B/OF, CIN )

37% owned

Dietrich has been on fire for the past two weeks, and I do not expect that to carry on throughout this season. Why? Mostly because he's Derek Dietrich and this is just a case of luck. No one in baseball has been luckier than Derek Dietrich. One-third of his fly balls have turned into home runs. His fly ball rate is up and so are his pull/hard-hit rates. He is selling out for power and it has worked out so far.

Going from Marlins Park to Great American Ballpark will benefit every hitter ever. GAB is a bandbox but even it cannot sustain DD's power outburst. Good news for owners is that he is walking more and striking out less. The sub-.200 BABIP will go up but should be lower than his career average due to this change in approach. If some schmuck in your league needs middle infield depth, trade Dietrich for any possible positive return.

 

David Peralta - (OF, ARI)

87% owned

Peralta is overperforming and absolutely a sell candidate. All of his expected stats on BaseballSavant point towards regression. His BABIP is nearly .400 while he is striking out more than ever and walking less than he has the past two years. The lineup in Arizona is not good and his counting stats should hit a rough patch in the near future.

Thus far, with 23 runs, 26 RBI and six home runs, Peralta should be decently attractive enough to include in a trade. Try to package him for maybe someone like Goldschmidt who has been underperforming or someone like Altuve who should not be on the injured list too long.

More 2019 Fantasy Baseball Advice




POPULAR FANTASY TOOLS

#1 Expert Projections
Save 30% Now
Import Your Leagues
Top-Rated Accuracy
Draft Simulator
Enter League Settings
Compare Any Players
Rookies & Call-Ups
24x7 News and Alerts

REAL-TIME FANTASY NEWS

Myles Garrett

Browns Won't Trade Myles Garrett
Kevin McGonigle

Batting Sixth in MLB Debut
Jeremy Peña

Jeremy Pena Not in the Lineup on Opening Day
Jonathan Greenard

Colts Interested in Jonathan Greenard
JJ Wetherholt

Batting Leadoff in MLB Debut
Micah Parsons

Expected to Miss First Three or Four Games of 2026
Breece Hall

Still a Chance Breece Hall Plays 2026 on Franchise Tag
Myles Garrett

Browns Modify Myles Garrett's Contract
Kyle Pitts Sr.

Remains a Risky Tight End Option Despite 2025 Breakout
Dalton Schultz

Upside Remains Limited Despite Resurgent 2025 Production
Kimani Vidal

Could Be Sliding Down the Running Back Depth Chart in Los Angeles
Juwan Johnson

Can Juwan Johnson Repeat Steady 2025 Production in 2026?
Jackson Chourio

Placed on Injured List with Fractured Hand
Francisco Lindor

Officially Starting on Opening Day
Tank Dell

Can Tank Dell Re-Establish His Career Coming Off His Serious Injury?
Chuba Hubbard

Has Chuba Hubbard Reclaimed the RB1 Role in Carolina?
Keegan Murray

Cleared for Basketball Activities
Killian Hayes

Uncertain for Thursday
Precious Achiuwa

Questionable Thursday
Jalen Suggs

Could Miss Third Consecutive Game
Anthony Black

Misses 11th Straight Game
Franz Wagner

Remains Out Thursday
Anthony Edwards

Could Return Saturday
Mika Zibanejad

Pots Two Goals Versus Toronto
Pavel Zacha

Adds Two More Points Against Buffalo
Jordan Addison

in Line for 2026 Resurgence with Improved Quarterback Play?
Landry Shamet

to Remain Out Thursday
Gunnar Helm

Appears Well-Positioned for 2026 Breakout
Vít Krejčí

Vit Krejci Misses Sixth Straight Game
Peyton Watson

Good to Go Wednesday
Dalton Kincaid

Facing Durability and Usage Questions Heading into 2026
Aaron Gordon

Misses Second Leg of Back-to-Back
Jakob Poeltl

Cleared to Play Against Clippers
Colston Loveland

Poised for Superstar Breakout in 2026?
Immanuel Quickley

Won't Play Wednesday
Brandon Ingram

Active Against Clippers
Khalil Shakir

Could See His Role in Buffalo Shrink in 2026
Myles Turner

Won't Play Against Trail Blazers
Bobby Portis

Kyle Kuzma Out Wednesday
Brandon Williams

Available Wednesday Night
Kawhi Leonard

Ready to Face Raptors
Daniel Gafford

Won't Play Wednesday
Jerami Grant

Returns to Action Wednesday
Robert Williams III

Active Wednesday Night
Christian Watson

Is Christian Watson's Breakout Season Coming in 2026?
Pat Freiermuth

Should Have More Volume, but QB Situation Still a Mystery
Nicolas Roy

to Be Out For "a Little Bit"
Anton Lundell

Likely Out for Rest of Regular Season
Anthony Mantha

Day-to-Day With Lower-Body Injury
Evgeni Malkin

to Remain Out Thursday
Mattias Samuelsson

a Game-Time Call Wednesday
Jonathan Quick

Remains Unavailable Wednesday
Victor Hedman

Takes Leave of Absence
Jake Bates

Lions Officially Re-Sign Jake Bates
Patrick Mahomes

Chiefs "Optimistic" That Patrick Mahomes Can Take Part in Offseason Practices
Najee Harris

Visits With Seahawks
Sean Murphy

Lands on 10-Day Injured List
Bryce Miller

Placed on 15-Day Injured List With Oblique Strain
Lars Nootbaar

Will Begin the Season on 60-Day Injured List
Jackson Holliday

Placed on 10-Day Injured List
Jeremy Peña

Jeremy Pena on the Astros Opening Day Roster
Blake Snell

Dodgers Place Blake Snell on 15-Day Injured List
John Carlson

Sets Up Three Goals Tuesday Night
Joel Hofer

Picks Up Sixth Shutout of the Season
John Tavares

Records Three Assists in Tuesday's Win
NJ

Arseni Gritsyuk Scheduled for Imaging Wednesday
Tony DeAngelo

Suffers Lower-Body Injury Tuesday
Emmitt Finnie

Enters Concussion Protocol
Ryan Fox

a High-Upside Value in Houston
Barrett Hayton

Sustains Upper-Body Injury Tuesday
Marco Penge

a Boom-or-Bust Option in Houston
Aaron Rai

Looks to Bounce Back in Houston
Jason Day

a Volatile Option at the Texas Children's Houston Open
Kirby Yates

Angels Place Kirby Yates on 15-Day Injured List
Harris English

Eyes a Bounce-Back at the Texas Children's Houston Open
Ben Griffin

Looks for Turnaround at the Texas Children's Houston Open
Rickie Fowler

Brings Strong Form Into Texas Children's Houston Open
Brady Tkachuk

Collects Two More Points on Tuesday
Martin Necas

Scores Twice Against Penguins
Nick Lodolo

Will Open 2026 on the Injured List Due to Finger Ailment
Pete Crow-Armstrong

Agrees to Six-Year, $115 Million Extension With the Cubs
Igor Chernyshov

Returns to Sharks Lineup
Dylan Larkin

Good to Go Tuesday
Ross Colton

Logan O'Connor, Ross Colton Available Tuesday
Francisco Lindor

Likely to be Ready for Opening Day
Ryan Gerard

Can Continue Rolling at Texas Children's Houston Open
Pierceson Coody

Bounces Back at Valspar Championship
Rasmus Hojgaard

Trying to Get Back on Track at Texas Children's Houston Open
Michael Thorbjornsen

Playing Well Heading to Texas Children's Houston Open
Harry Hall

Looking for Consistency at Texas Children's Houston Open
Brooks Koepka

Continues Building Momentum
Roki Sasaki

to Stick in Rotation Despite Spring Struggles
Kevin McGonigle

Makes Tigers Opening Day Roster
Scottie Scheffler

Withdraws From Texas Children's Houston Open
Ryan Pepiot

Placed on Injured List to Open the Season
JJ Wetherholt

Likely to Hit Leadoff on Opening Day
Connelly Early

to Make First Start on Sunday
Luke Clanton

Might Have a Problem in Houston
Sam Stevens

Happy to See Houston This Week
Keith Mitchell

Tries to Rebound After The Players Championship
Will Zalatoris

Returning This Week at Houston
Wyndham Clark

Trending in the Wrong Direction Heading to Houston
Shane Lowry

Seeking Better Luck in Houston This Weekend
Kurt Kitayama

Poised to Bounce Back at the Houston Open
Pete Crow-Armstrong

Cubs, Pete Crow-Armstrong Finalizing Long-Term Extension
Lerone Murphy

Suffers His First Loss
Movsar Evloev

Edges Out Lerone Murphy
CFB

Notre Dame Ranks No. 1 in Returning Production for 2026
Michael Aswell

Jr. Drops Decision At UFC London
Michael Aswell

Luke Riley Outclasses Michael Aswell Jr.
Sam Patterson

Suffers Unanimous-Decision Loss
Michael Page

Wins Lackluster Decision
Austen Lane

Suffers First-Round TKO Loss
Iwo Baraniewski

Delivers 28-Second TKO
Tyler Reddick

Overcomes Adversity for Fourth Victory of the Season At Darlington
Brad Keselowski

Falls Short of Darlington Victory Despite Domination
Ryan Blaney

Recovers From Pit-Road Struggles to Score Career-Best Darlington Finish
Carson Hocevar

Rallies to Finish Fourth at Darlington
Kyle Larson

Decent Performance Ends with Technical Issues At Darlington
Tyler Reddick

the Clear Favorite at Darlington
Kyle Larson

a High-Risk, High-Reward Driver at Darlington
Ryan Blaney

Is Getting Better at Darlington
NASCAR

Bubba Wallace Not Slowing Down at Darlington
Chris Buescher

Should be a Top-10 Contender at Darlington
Austin Cindric

a Sleeper at Darlington
Erik Jones

Quickest in Practice at Darlington
Denny Hamlin

Qualifies Ninth for this Week's Cup Race at Darlington
Chase Briscoe

Is One of the Top DFS Options of the Week for Darlington
William Byron

Is William Byron A Playable DFS Option for Darlington Lineups?
Christopher Bell

Could Christopher Bell be Considered A Decent DFS Option for Darlington?
Chase Elliott

Is Chase Elliott Worth Rostering At Darlington This Week For DFS?
Joey Logano

May Not Have the Speed to Warrant A Darlington DFS Lineup Spot
Ross Chastain

Should DFS Players Trust Ross Chastain at Darlington?
Kyle Busch

Could Kyle Busch Be A Worthy DFS Option for Darlington?
Brad Keselowski

May be A Contriarian DFS Tournament Option At Darlington
RANKINGS
C
1B
2B
3B
SS
OF
SP
RP

RANKINGS

QB
RB
WR
TE
K
DEF