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
Daily Stats & Leaders
All Pitcher Matchups
Compare Any Players
Player Comparisons
Rookies & Call-Ups
24x7 News and Alerts

Who Should I Start? Fantasy Baseball Start/Sit Decisions for Matt Olson, Rafael Devers, Jasson Dominguez, Ronny Mauricio, more

matt olson fantasy baseball rankings draft sleepers mlb injury news

Welcome RotoBallers to my fantasy baseball start/sit article for the week ahead, September 4 - September 10. This week's article will focus on Jasson Dominguez, Ronny Mauricio, Jack Flaherty, Michael Kopech, Jake Fraley, Lars Nootbaar, Matt Olson, and Rafael Devers.

Whether you are prepping to set your weekly lineups or determining who to play in a pivotal daily matchup, choosing who to start vs. sit is one of the most nerve-racking and potentially frustrating aspects of fantasy baseball. Fortunately, there is a free solution available at RotoBaller. The Who Should I Start Tool allows you to quickly compare any two players and receive fantasy projections for today, tomorrow, or the current week.

The tool provides rankings, projections, recent news, and schedules side-by-side to aid in your decision-making. The tool defaults to ESPN scoring, but the Premium version within Team Sync will automatically use your league's scoring and roster settings when making recommendations. Each week, I will use the tool to review a few interesting start/sit comparisons for the final day of the period and preview the following week. Hopefully, this series will help both daily fantasy managers end their weeks strong and also get them comfortable with routinely using the tool during the week to make tough roster decisions. Let's get into some start vs. sit comparisons for the week ahead, September 4 - September 10!

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

 

Crosstown Call-Ups

Jasson Dominguez (OF) vs. Ronny Mauricio (SS)

Our first comparison is between two highly-touted prospects who have recently been called up for New York teams. Jasson Dominguez hadn't played much at Triple-A Scranton/Wilkes-Barre but had an impressive .419/.514/.581 slash line. Ronny Marucio had shown power and speed all season long with Triple-A Syracuse, slashing .292/.346/.506 with 23 home runs and 24 stolen bases. Which player is more worth a roster spot down the stretch?

Both players are actually too new to be in the tool, but both will face tougher matchups on Sunday. The Mets will face a tougher matchup against George Kirby, while the Yankees will be at the scuffling Cristian Javier. As such, Dominguez gets the edge for Sunday.

Looking ahead to Week 24, both teams will draw a favorable slate. The Yankees will play three games against the Tigers and three against the Brewers, while the Mets will play two at the Nationals and three at the Twins. Both are scheduled to face three lefties.

Mauricio has hit lefties much better than Dominguez throughout their time in the farm systems. The Yankees do get one more game, but Dominguez's playing time may be limited this week due to the lefty-heavy schedule. Both players offer intriguing power and speed fantasy upside, but Mauricio gets the nod for the following week.

 

Desperate Streamers

Jack Flaherty vs. Michael Kopech

Our next comparison is between two starters whom fantasy managers may be forced to stream in a last effort to earn a playoff berth. Jack Flaherty has been mostly underwhelming since joining the Orioles, posting a 6.41 ERA and 24.4% strikeout rate in four starts. Michael Kopech has been very inconsistent this season with a 5.08 ERA and a 22.8% strikeout rate in 25 starts. Which one is the less-risky bet?

RotoBaller gives Flaherty a slight recommendation for Sunday. Kopech draws the better matchup, as he does have the projection edge in strikeouts. Flaherty has a better chance for a win and is expected to pitch longer into the game with a slightly better ERA and WHIP.

Flaherty is slated for a tough matchup next week at the Red Sox, while Kopech will face the Tigers again on the road. Both players are again only desperate shots in the dark, but Flaherty does now play on a much better team than Kopech and has sprinkled in strong starts throughout the season. Walks and home runs have truly been crippling for Kopech. While walks have been an issue for Flaherty as well, they haven't been nearly as bad.

While I would not recommend either player unless truly necessary, I do think that Flaherty has a better chance of turning in a decent start for fantasy managers than Kopech.

 

Recently-Returning Outfielders

Jake Fraley vs. Lars Nootbaar

This comparison is between two solid outfielders who have recently returned from the injured list. Jake Fraley has been an overall fantasy contributor this season with a .269/.349/.476 slash line, 15 HR, 63 RBI, and 20 steals. Lars Nootbaar has also helped in all facets, slashing .279/.380/.447 with 12 HR, 39 RBI, and eight stolen bases. Which of these players should fantasy managers slot back into their lineups?

Fraley receives a slight recommendation for Sunday. Both will face decent matchups but Fraley draws the better one. Ultimately, Fraley's high projected batting average, slugging percentage, and stolen bases give him the edge. But both are solid choices in points leagues.

The Reds will have a six-game homestand the following week with three games against the Mariners and three against the Cardinals. The Cardinals will play three games at the Braves before heading to Cincinnati. The Reds are scheduled to face two lefties while the Cardinals will face three.

Both players have hit righties better, but Fraley has really struggled against lefties with a .147 batting average. Despite this, Fraley offers more value in roto leagues given his higher HR and SB counts, which also carries over into points leagues. This and the better matchups give the edge to Fraley for the following week.

 

Slumping Sluggers

Matt Olson (1B) vs. Rafael Devers (3B)

Our final comparison is between two top fantasy players who have really disappointed lately. Matt Olson managed a mere .357 slugging percentage with no HR over the final two weeks of August, while Rafael Devers wasn't much better with a .356 slugging percentage and one HR. Fantasy managers will likely feel compelled to start both, but which one has the better chance to pick it up for the fantasy playoffs?

RotoBaller gives Olson a slight recommendation for Sunday despite drawing the tougher matchup. Olson's higher slugging projection seems to be the deciding factor, but Devers has higher projections in batting average. Given the recent lack of power from both, I would probably lean toward Devers.

The Braves have a great slate the following week with three games against the Cardinals and three against the Pirates. On the other hand, the Red Sox will face three at the Rays and three against the O's. The Braves will face two lefties and the Red Sox will face one, which doesn't really impact either player.

Both players have been slumping recently, so the decision ultimately comes down to the matchups. In this case, the Braves have some of the best matchups of the week, making Olson my pick.



Download Our Free News & Alerts Mobile App

Like what you see? Download our updated fantasy baseball app for iPhone and Android with 24x7 player news, injury alerts, sleepers, prospects & more. All free!



More Fantasy Baseball Analysis




POPULAR FANTASY TOOLS

Expert Advice
Articles & Tools
Import Your Leagues
Daily Stats & Leaders
All Pitcher Matchups
Compare Any Players
Player Comparisons
Rookies & Call-Ups
24x7 News and Alerts

REAL-TIME FANTASY NEWS

Elly De La Cruz2 hours ago

Racks Up Four Hits, Four Steals on Thursday
Shane Baz6 hours ago

Reaches 69 Pitches In Third Rehab Start
J.P. Crawford6 hours ago

Mariners Unsure When J.P. Crawford Will Return
Nico Hoerner6 hours ago

Aiming To Return Friday
Dansby Swanson7 hours ago

Ramping Up Activity
Taijuan Walker8 hours ago

Leaves Start Early With Foot Injury
Emmet Sheehan8 hours ago

Undergoes Tommy John Surgery
Trea Turner8 hours ago

Goes Through More Agility Work
Kodai Senga8 hours ago

Moving Closer To Rehab Assignment
Jonathan India9 hours ago

Idle From Lineup Again On Thursday
Will Smith9 hours ago

Getting Thursday Off
Max Muncy9 hours ago

Not In Thursday’s Lineup
Clarke Schmidt9 hours ago

Strikes Out Eight Across Eight Shutout Frames
Brad Marchand10 hours ago

Hopes To Return To Action In Game 6
Brett Pesce10 hours ago

Remains Out On Thursday
Adam Henrique10 hours ago

Nearing Return
Calvin Pickard10 hours ago

Makes Second Consecutive Start On Thursday
Carson Soucy10 hours ago

Returns From Suspension In Game 5
Brandon Nimmo10 hours ago

Scratched With Stomach Bug
Vasily Podkolzin10 hours ago

Makes Stanley Cup Playoffs Debut Thursday
Nico Hoerner10 hours ago

Still Out On Thursday
Nils Hoglander10 hours ago

Returns To Canucks Lineup In Top-Six Role
Cleveland Cavaliers11 hours ago

Cavaliers Will Evaluate Their Backcourt
Coby Mayo11 hours ago

Injured At Triple-A
Tyler O'Neill11 hours ago

Connor Wong, Tyler O'Neill Not Playing Against Rays
Bryson Stott11 hours ago

Out Against Lefty
Mike Conley12 hours ago

Expected To Play In Game 6
Robert Tonyan14 hours ago

Signs With Vikings
Luis Rengifo14 hours ago

Reinstated From Injured List
DJ LeMahieu15 hours ago

To Begin Rehab Assignment Friday
Ryan Pepiot15 hours ago

Close To Returning
Vinicius Salvador16 hours ago

Moves Up To Bantamweight At UFC Vegas 92
Adrian Yanez16 hours ago

Looks To Snap Losing Skid At UFC Vegas 92
Themba Gorimbo16 hours ago

A Favorite At UFC Vegas 92
Ramiz Brahimaj16 hours ago

Ends Layoff At UFC Vegas 92
Joe Pavelski16 hours ago

Shows Signs Of Life With Two-Point Effort
Edson Barboza16 hours ago

Headlines UFC Vegas 92
Jason Robertson16 hours ago

Hands Out Two Assists In Losing Effort
Artturi Lehkonen16 hours ago

Makes Big Impact In New Role
Cale Makar17 hours ago

Pots Two Goals As Avalanche Stay Alive
Yakov Trenin17 hours ago

Sustains An Upper-Body Injury
Tyler Seguin17 hours ago

Hurt In Game 5 Loss
Josh Giddey17 hours ago

Provides 11 Points In Bench Role
Shai Gilgeous-Alexander18 hours ago

Puts Up 30 Points In Game 5 Loss
Dereck Lively18 hours ago

II Registers Double-Double Off The Bench
Luka Doncic18 hours ago

Leads Mavericks In Game 5 With 30-Point Triple-Double
Derrick White18 hours ago

Bounces Back Wednesday Night
Al Horford18 hours ago

Stuffs Stat Sheet In Game 5 Win
Jayson Tatum18 hours ago

Close To Second Postseason Triple-Double In Wednesday's Win
Pittsburgh Steelers1 day ago

Cameron Heyward Plans To Hold Out As He Seeks Extension
Tee Higgins1 day ago

Growing Frustrated With Bengals
Darius Garland1 day ago

Takes A Step Back On Wednesday
Evan Mobley1 day ago

Thrives In Game 5
Mike Conley1 day ago

In Danger Of Missing Game 6
Jamal Murray1 day ago

On The Injury Report For Thursday
Craig Porter1 day ago

Jr. Remains Out On Wednesday
Jarrett Allen1 day ago

Downgraded To Out
Caris LeVert1 day ago

Ruled Out For Wednesday
Donovan Mitchell1 day ago

Officially Out For Game 5
NFL1 day ago

Netflix Christmas Day Games Announced
Donovan Mitchell2 days ago

Unlikely To Play In Game 5
New York Giants2 days ago

Giants To Be Featured On Hard Knocks
NFL2 days ago

International Games Revealed For 2024 Season
D'Andre Swift2 days ago

Could Be Used Often In Passing Game
Lonzo Ball2 days ago

Says He's At "70 Percent"
Karl-Anthony Towns2 days ago

Battles Through Knee Issue To Lead Team In Scoring
Aaron Gordon2 days ago

Shakes Off Foul Trouble For Double-Double Performance
Kirk Cousins2 days ago

Jogging, Throwing During OTAs
Sepp Straka2 days ago

In Excellent Form For PGA Championship
Tom Kim2 days ago

Trending In The Right Direction For PGA Championship
PGA2 days ago

Can Tyrell Hatton Put It All Together At PGA Championship?
Jordan Spieth2 days ago

Needs Consistency At PGA Championship
Joaquin Niemann2 days ago

To Continue Playing Well At Valhalla?
Collin Morikawa2 days ago

Rounding Into Form Heading To Valhalla
Scottie Scheffler2 days ago

Returns To Action For PGA Championship
Russell Henley2 days ago

An Interesting Name At PGA Championship
Martavis Bryant2 days ago

To Work Out For Commanders
Jahmyr Gibbs2 days ago

Could Have Bigger Role In 2024
Corey Conners2 days ago

A Real Dark Horse At PGA Championship
PGA2 days ago

Can Sungjae Im Keep The Momentum At Valhalla?
Dean Burmester2 days ago

Comes Back To PGA Championship
Stephan Jaeger2 days ago

Final Round Last Week Is Troubling
Keegan Bradley2 days ago

Still A Longer Shot For Valhalla
Roope Hintz2 days ago

Undergoing Testing For Injury
Shane Lowry2 days ago

In For Long Week At PGA Championship
PGA2 days ago

Alex Noren Has Been Very Consistent In 2024
Jeremy Swayman2 days ago

Remains In Bruins Crease For Game 5
Adam Henrique2 days ago

Remains Out For Game 4
Akshay Bhatia2 days ago

Eager To Take On Valhalla
Ryan Nugent-Hopkins2 days ago

Moving To First Line Tuesday
Calvin Pickard2 days ago

Poised For First Playoff Start
Brad Marchand2 days ago

Remains Out On Tuesday
Tony Finau3 days ago

The Tony Finau Roller Coaster To Continue In Louisville
Cincinnati Bengals3 days ago

Trey Hendrickson Committed To The Bengals
Matt Fitzpatrick3 days ago

Looking For Consistency En Route To Valhalla
Kansas City Chiefs3 days ago

Chiefs To Start Title Defense Against Ravens
NFL3 days ago

Jets-49ers To Face Off On Monday Night In Week 1
Wyndham Clark3 days ago

Looks To Right His Rough PGA Championship History
Bijan Robinson3 days ago

Dealing With Ankle Injury
Ludvig Aberg3 days ago

On Track To Play In PGA Championship
Talor Gooch3 days ago

Makes Valhalla Debut
Marquez Valdes-Scantling3 days ago

Signs With Bills
Martin Necas3 days ago

Ends Dry Spell With Pair Of Points
Evgeny Kuznetsov3 days ago

Scores Game-Winner As Hurricanes Stay Alive
Marquez Valdes-Scantling3 days ago

Making A Stop In Buffalo
Courtland Sutton3 days ago

Remains Away From The Team
Brad Keselowski3 days ago

Snaps Winless Streak With Second Darlington Victory
NASCAR3 days ago

Bubba Wallace Earns Much-Needed Good Finish At Darlington
Denny Hamlin3 days ago

Sees Positives In Below-Average Day At Darlington
Justin Haley3 days ago

Gets Best-Ever Finish For Rick Ware Racing
Jared Goff3 days ago

Agrees To Four-Year, $212 Million Extension
Kyle Larson3 days ago

Wins Stage, but Crashes Out at Darlington Due to Cut Tire
Todd Gilliland3 days ago

Slow Pit Stops Foil Todd Gilliland at Darlington Despite Impressive Speed
Chris Buescher3 days ago

Taken Out of Win, but Increased Aggression Working for Him
Ryan Blaney3 days ago

Despite Crash, Ryan Blaney Had One of His Best Darlington Runs
Cincinnati Bengals3 days ago

Trey Hendrickson Attending Voluntary Workouts Despite Trade Request
Tampa Bay Buccaneers4 days ago

Antoine Winfield Jr. Reaches Four-Year Agreement With Buccaneers
Joaquin Buckley4 days ago

Extends Win Streak
Nursulton Ruziboev4 days ago

Suffers Unanimous-Decision Loss
Carlos Ulberg4 days ago

Stuns With 12-Second Knockout
Alonzo Menifield4 days ago

Knocked Out In The First Round At UFC St. Louis
Alex Caceres4 days ago

Drops Decision Matchup
Sean Woodson4 days ago

Extends Win Streak
Michael McDowell4 days ago

Finishes 10th at Darlington Raceway
Chase Briscoe4 days ago

Delivers Value In DFS At Darlington Raceway
Tyler Reddick4 days ago

Darlington Dominance Ends With Disappointment
Noah Gragson4 days ago

Quietly Scores Another Top-15 Finish At Darlington
Josh Berry4 days ago

Ends Up Third At Goodyear 400
Ty Gibbs4 days ago

Holds On For Second Place At Darlington
Robelis Despaigne4 days ago

Suffers First Career Loss At UFC St. Louis
Waldo Cortes-Acosta4 days ago

Gets Upset Win At UFC St. Louis
Mateusz Rębecki4 days ago

Mateusz Rebecki Gets TKO'd At UFC St. Louis
Diego Ferreira4 days ago

Pulls Off Upset At UFC St. Louis
Rodrigo Nascimento4 days ago

Gets Finished At UFC St. Louis
Derrick Lewis5 days ago

Records KO Win At UFC St. Louis
Denny Hamlin5 days ago

The Best Active Driver At Darlington
Tyler Reddick5 days ago

Should Dominate Early At Darlington
Noah Gragson5 days ago

A Core DFS Play At Darlington
William Byron5 days ago

A Strong Pick For Darlington
Martin Truex Jr5 days ago

. Still Confident Despite Hitting Wall In Qualifying At Darlington
Christopher Bell5 days ago

Could Be A Contender At Darlington Despite Poor Track Record
NASCAR5 days ago

Bubba Wallace Needs A Good Run At Darlington
Jarvis Landry6 days ago

Works Out With Jaguars Friday
RANKINGS
C
1B
2B
3B
SS
OF
SP
RP

RANKINGS

QB
RB
WR
TE
K
DEF

MORE RECENT ARTICLES

 
UFL DFS PICKS, FANTASY FOOTBALL, DRAFTKINGS, FANDUEL

UFL DFS Value Plays: Week 8 Bargain Bin for DraftKings Including Bryce Perkins, Matt Colburn, JaVonta Payton, More

Welcome to the Week 8 edition of RotoBaller's UFL DFS Bargain Bin, where the goal is to touch on some potentially mispriced players in DraftKings' Week 8 UFL contests. Each week during the UFL 2024 season and postseason, I’ll give you my thoughts on where there may be some value spots to exploit for DraftKings'... Read More


2024 Fantasy Football Dynasty Rankings: Kyren Williams, Marvin Harrison Jr., Justin Herbert, Kyle Pitts, Stefon Diggs, Brock Bowers, Xavier Worthy

Hey, RotoBallers! It's always fantasy football season here at RotoBaller HQ. With the 2024 NFL Draft in the books, it's time for more fantasy football rankings! Today, we will review our NFL team's updated 2024 fantasy football dynasty rankings (the top-500 players), including Marvin Harrison Jr., Malik Nabers, Breece Hall, Puka Nacua, Kyren Williams, Kyle... Read More


2024 NFL Schedule Winners and Losers

After getting bits and pieces of the 2024 NFL schedule over the last few days, Roger Goodell and company have finally dropped the entire slate for the upcoming season. We still have nearly four months to sort through the entirety of this year's schedule, and while we will continue to focus in the microscope on... Read More


Fantasy Football Rookie Quarterbacks You Must Have In 2024

It's already the middle of May, and aside from Justin Timberlake memes flooding your "for you feed," that could only mean one thing -- it's fantasy football draft season! It is an excellent time of the year to get in some best ball drafts or conduct a dynasty startup. You may even be amid some... Read More


Jaylen Warren - Fantasy Football Rankings, Waiver Wire Pickups, Draft Sleepers

Fantasy Football Backup Running Backs To Draft In 2024

Gone are the days of the workhorse running back. Unless your name is Christian McCaffrey or Derrick Henry, then odds are you have a backfield running mate who sees significant touches. In fantasy football, the running back position is diluted due to running back committees. As such, many teams have multiple backs that provide fantasy... Read More


Tyreek Hill - Fantasy Football Rankings, NFL Injury News, DFS Picks

Top 300 Fantasy Football Best Ball Rankings for 2024 (Post NFL Draft)

Howdy, RotoBallers! The NFL Draft is over, and some players are reporting for voluntary workouts. We are halfway through May and 100-plus days away from Week 1. It's never too early to prepare for fantasy football drafts, and the best ball season is officially here. We are here to help you crush your best ball... Read More


Jermaine Burton - Fantasy Football Rankings, College FB, WR, NFL Draft Sleepers

2024 Fantasy Football Rookie Drafts - Second-Round Sleepers and Avoids

We are smack in the middle of rookie draft season. It’s an important time as fantasy football dynasty managers are trying to find the right players to add to their teams. Much like redraft leagues, there are sleepers you want to target and players you want to avoid. The second round of dynasty rookie drafts... Read More


Fantasy Football Quarterback Sleepers, Undervalued (2024)

We're now in May, and the dust has settled from the free-agency period and the 2024 NFL Draft. We now know what every team will look like (for the most part), and fantasy managers are looking to prepare themselves for their respective leagues' drafts. Finding an undervalued QB can do wonders for your squad. Last... Read More


Jonathon Brooks - Fantasy Football Rankings, College FB, RB, NFL Draft Sleepers

Fantasy Football Rookie Spotlight: Jonathon Brooks

Former Texas running back Jonathon Brooks entered the 2024 NFL Draft as one of the best all-around backs in the class. His agility, speed, and quick feet made him an interesting target for any running back-needy team early in the draft. He was also coming off his best college season in 2023. However, the two biggest... Read More


Are They Worth It? Five Massively Overvalued Players in 2024 Fantasy Football Drafts

The football season is year-round at RotoBaller! With early 2024 best ball drafts already underway, we're digging into the ADP of fantasy football's biggest stars. NFL Network contributor and RotoBaller analyst LaQuan dives into the early ADP of some popular fantasy options. While these players are great, are they worth their out-of-control ADP or being... Read More


Is Justin Simmons A Free Agent? Top Landing Spots For Simmons This Offseason

Veteran safety Justin Simmons was a third-round pick in the 2016 NFL Draft by the Denver Broncos. Simmons has been one of the top safeties in the NFL since getting drafted, totaling 30 career interceptions. Last year, he had three interceptions, making it the sixth straight year that the veteran safety hit that total. Furthermore,... Read More


Dalton Kincaid - Fantasy Football, Tight End, Draft, Rankings, DFS

Fantasy Football Dynasty Breakout Players: FFPC Empire League Targets

The dynasty fantasy football excitement is already building towards the 2024 season, especially at the Fantasy Football Players Championship site, a prime destination for high-stakes players and all those looking to engage in seriously competitive leagues. This season, the FFPC has launched a unique twist on their dynasty formats with the new Empire Dynasty Leagues.... Read More


Top Running Back Position Battles For 2024 Fantasy Football

Many long, hot summer days are ahead. But, before we know it, training camps will be kicking off across the country. Within those camps, players will jostle for future playing time. One of the more important battles to watch, at least for fantasy football managers, is at the running back position. The starters for many... Read More