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Rookie Report: Recent MLB Prospect Call-Ups (Week 21)

ronald acuna fantasy baseball rankings MLB Injury news DFS lineup picks

Rookies and prospects who have recently been called up to the Major Leagues. Max Brill evaluates the most relevant rookies for Week 21 of the 2018 fantasy baseball season.

With the fantasy playoffs looming around the corner (or, in some instances, in full swing), rookie impact becomes less and less important due to the fact that there simply aren't any great stashes remaining. A top prospect being promoted for a cup of coffee can make a huge impact, but there does not profile to be a ton of guys who will fill that role this season, making the prospect pool even less intriguing for fantasy purposes.

That does not mean, however, that there will not be any cups of coffee, as indicated by Michael Kopech's MLB debut this past Tuesday. Kopech, who had demonstrated that he was ready for the big leagues, pitched in the Show for the first time this past week despite the White Sox being unequivocally out of the playoff race. Instead of playing with his service clock, the White Sox did the right thing and promoted an MLB-ready player to the MLB. Good on them (no pressure, Blue Jays).

Michael Kopech and Bryse Wilson are the lone new names joining the list this week while Jeff McNeil joins them as a returner. Jacob Nix, Sean Reid-Foley, Touki Toussaint, Brandon Lowe, and Garrett Hampson are saying sayonara. Without further ado, this week's rookie report.

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Prospect Call-Ups and Rookie Performances

Michael Kopech (SP, CWS)

Kopech, after an abysmal 12-start stretch spanning from early May to early July, posted elite numbers for the last month to earn himself a call-up. During his string of bad outings, Kopech walked 47 batters in 55.1 innings and pitched to a 5.69 ERA with a WHIP of 1.59. Not exactly the type of stuff you want to see from a top-of-the-line prospect. The good news for Kopech is that something clicked for him in July; in his last seven minor league starts, Kopech fanned 59 batters in 44 innings and walked just four opposing hitters. He posted an elite 1.84 ERA and was one of the best pitchers in all of the minor leagues during this stretch. So good, in fact, that the White Sox finally decided he had earned a call-up to the show.

What did Kopech do to reward them? Just go two scoreless innings with four strikeouts and no walks in a rain-shortened debut. His fastball looked electric and sat in the high 90s with movement, and he featured three breaking pitches, at least two of which were average or better. Kopech has the makings of a legitimate ace and will be extremely fun to watch down the stretch provided that his old walk issues do not resurface.

Bryse Wilson (SP, ATL)

Wilson, a fourth-round draft pick by the Braves in the 2016 draft, came seemingly out of nowhere to make his MLB debut this past week. After starting the season in Single-A, Wilson managed to climb all the way up the minor league ladder, a rare feat for a starting pitcher, to make his big league debut on Monday night for the Braves against the Pirates and threw a gem: 5 IP, 5 SO, 3 H, 3 BB, 0 R. Wilson is just the fourth player from the 2016 draft class to debut but, unfortunately for him, it looks as though Monday's outing is no more than a spot start. He, like Touki Toussaint, will fall victim to an extremely deep Braves rotation and farm system and be sent back to Triple-A to work on his stuff.

Jeff McNeil (2B/3B, NYM)

Well hello, Jeff. Mr. McNeil, a 26-year-old rookie, is very good at hitting the baseball, which gives me great pleasure as a Mets fan. Entering player on Wednesday, McNeil sported a robust .326/.388/.472 triple-slash through exactly 100 plate appearances. What did he do on Wednesday? Just went 2-4 with an RBI, another day at the office for old Jeff. The reason McNeil was not a bigger prospect is that he has always been old for his level due to injuries, so his performance relative to what someone his age should have been doing at his assigned minor league levels has never stood out. This is a guy who can flat-out hit, though, and is a must-grab in all leagues of 12 teams or deeper, especially for those of you who need infield help. McNeil and his single-digit strikeout rate are both here to stay.

Willie Calhoun (OF, TEX)

Calhoun was demoted due to Nomar Mazara being activated from the disabled list, which is not an encouraging sign. The fact that Calhoun was triple-slashing a relatively uninspiring .275/.325/.391 was no help, but if the Rangers, who are rebuilding, aren't willing to give one of their top prospects an extended look in the majors during a down period for their big league club, that doesn't bode well for his fantasy value. He's a safe drop in all redraft leagues.

Danny Jansen (C, TOR)

Jansen is triple-slashed a cool .381/.391/.667 through his first six contests, making him an extremely valuable fantasy backstop since his debut. The problem is that he is only playing about four times a week, which is a lot less valuable. Still, a catcher who posts elite hitting stats, despite playing just four games a week, is an asset in any fantasy league. He went 0-2 with his first MLB walk on Wednesday night and remains one of the better catching options in fantasy. If he begins to see everyday playing time, he should immediately catapult into the top five fantasy catcher conversation.

Taylor Ward (C/3B, LAA)

Despite hitting well below .250 since his call-up, Ward has been a respectable fantasy catcher, which says a lot more about the state of the position than his hitting ability. Don't get me wrong, Ward should be a valuable fantasy producer at some point, but right now does not seem to be that time. When he loses catcher eligibility after this season he becomes a lot less valuable, so ride him while you can.

 

Quick Hits

Ronald Acuna (OF, ATL)

The Ronald is hot. So hot, in fact, that I think he is as good a bet as any to win Player of the Month for August. With his solo shot on Wednesday, Acuna raised his triple-slash this month to a ridiculous .341/.419/.756. He has also launched nine bombs, scored 21 runs, and driven in 17 in just 22 contests this month. Basically, Acuna is an absolute monster and is now likely the frontrunner for Rookie of the Year in the NL, or at the very least giving Juan Soto a run for his money.

Juan Soto (OF, WAS)

Soto has just five hits in his most recent 27 PA, but the good news is that he is still walking. The strikeouts have ticked up a little bit, but there is nothing in his profile that jumps out as a cause for concern. Deploy Childish Bambino as usual.

Miguel Andujar (3B, NYY)

Andujar still is not walking but it still does not matter. He is seven for his last 26 and has nearly pushed his average over .300 with his recent hot streak. If Andujar can continue hitting and the Red Sox continue to lose, there is a chance that he and the Baby Bombers can steal the AL East. I wouldn't count on it, though.

Shohei Ohtani (SP/DH, LAA) 

Mike Scioscia said recently that Ohtani could pitch again this season for the Angels, which would be a miracle given that he is likely headed for Tommy John Surgery in the not-so-distant future. Meanwhile, the hitter version of Ohtani is four for his last 14 with a homer and four RBI, so that's good too.

Seranthony Dominguez (RP, PHI)

Dominguez, pitching in his first game action in nearly a week, blew the save in his first chance in a week. After recording the save in the second half of a twin bill with the Mets a week ago today, he was called upon once again for a save last night and was unable to shut the door, allowing a walk-off two-run homer to Ryan Zimmerman with the game on the line. Still, Dominguez has been dominant this season and remains one of the top relief arms in fantasy.

Gleyber Torres (2B/SS, NYY)

Torres has heated back up over the past week, picking up a hit in every contest but one over the last seven days. The Rookie of the Year candidate has notched eight hits over his last 24 ABs and is now back to playing shortstop with Didi Gregorius on the disabled list. Business as usual for the youngster.

Jake Bauers (1B, TB)

Bauers looks simply lost at the dish recently. The 22-year-old has just one hit in his last 41 PA and though the walks are still there, hits are a lot more productive for getting on base. If you need the roster space in a redraft league, dropping Bauers makes a lot of sense.

 

Josh Hader Update

Hader this past week: three perfect innings, five strikeouts, and a save to boot. Easy money for Hader.

 

More MLB Prospects Analysis




REAL-TIME FANTASY NEWS

Mike Conley

Hints He Will Continue Playing Next Season
Kevin Huerter

Iffy for Sunday Night
Caris LeVert

Questionable for Game 7
Duncan Robinson

Back on Injury Report Ahead of Game 7
Larry Nance Jr.

Likely Out Sunday Due to Illness
Munetaka Murakami

Fantastic First Season Continues With Two More Homers
Cristopher Sánchez

Cristopher Sanchez Dazzles With 13-Strikeout Complete Game on Saturday
Aaron Rodgers

Signs One-Year Deal With Steelers
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
Alex Lyon

Likely to Start Game 6 Against Canadiens
Owen Power

Available Saturday
Isaac TeSlaa

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a Huge Question Mark for Dynasty Managers
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Now Only a Gadget Player/Kick Returner?
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Offseason Additions Hurt Elic Ayomanor's Dynasty Outlook
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a Clear Top-Five Dynasty Tight End
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Currently in a Dynasty Buy Window Amid Rollercoaster Offseason
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Duncan Robinson

Nets 14 Points With Four Triples
Cade Cunningham

Contributes 21 Points in Game 6 Win
Jalen Duren

Bounces Back With Double-Double
Anthony Edwards

Finishes Season-Ending Loss With 24 Points
Victor Wembanyama

Tallies 19 Points in Friday's Win
De'Aaron Fox

Highly Effective in Blowout Win
Stephon Castle

Shines in Series-Clincher
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
Austin Reaves

Could Command $40M Per Year With New Contract
Jalen Duren

Available to Finish Game 6
Yanic Konan Niederhauser

Not Expected to Be Ready for Start of Next Season
Jalen Williams

Declares Himself Healthy for Conference Finals
Terrence Shannon Jr.

Will Play Friday Night
Kevin Huerter

is Available for Game 6
Duncan Robinson

is Returning for Game 6
Caris LeVert

is Cleared for Game 6 on Friday
OG Anunoby

Practices in Full on Friday
Blake Snell

Scratched From Start on Friday for Undisclosed Reasons
Luther Burden III

Does Luther Burden III Have WR1 Dynasty Upside in Chicago?
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Max Fried

Heading to Injured List With Elbow Bone Bruise
Jaylin Noel

Playing-Time Outlook in Houston Remains Unclear
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Julian Sayin Looking To Build Off Of Strong Debut Season
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College GameDay Set for First Three Weeks
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Jeremiah Smith Aiming For Ohio State Receiving Records
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Keshaun Singleton Projects as Auburn's WR1
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Jeremiah Cobb Impresses New Auburn Staff
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Alberto Mendoza Very Likely to Start for Georgia Tech
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Charles Woodson Jr. Commits to Michigan
Jordan Westburg

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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
Tarik Skubal

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Lane Hutson

Contributes Two Assists in Game 5 Victory
Nick Suzuki

Amasses Three Points in Crucial Victory Thursday
Juraj Slafkovsky

Dishes Out Three Assists in Game 5 Win
Carter Hart

Stops 31 Pucks in Series-Clinching Win
Pavel Dorofeyev

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Shea Theodore

Records Two Points in Game 6 Win
Mitchell Marner

Scores Special Goal in Series-Clincher
Ryan Johnson

Takes Over as Canucks GM, Sedins Promoted to Co-Presidents
Drew Helleson

Won't Play Thursday
Radko Gudas

Unlikely to Play Thursday
Jeremy Lauzon

Remains Out Thursday
Mark Stone

Misses Third Consecutive Game
EDM

Kris Knoblauch Fired as Oilers Head Coach
CFB

Virginia Tech Lands Commitment from Four-Star QB Peter Bourque
Byron Buxton

Scratched on Thursday With Hip Soreness
Cal Raleigh

Heading to Injured List With Oblique Strain
Francisco Alvarez

has Knee Surgery, Expected to Miss Eight Weeks
Quinn Hughes

Finishes Postseason With 15 Points
Cal Raleigh

Exits With Apparent Side Injury on Wednesday Night
Juan Soto

X-Rays Come Back Negative on Juan Soto's Ankle
Jacob Misiorowski

Pulled Early With Possible Leg Injury
CFB

NFL Veteran Tom Moore Joins Iowa Coaching Staff
CFB

Can Cam Cook Dominate in Return to Big 12?
CFB

ACC, Big 12 Support 24-Team College Football Playoff
CFB

Anthony Colandrea Looking to Elevate Nebraska Back to National Contention
CFB

Kwazi Gilmer Set for Big Impact at Nebraska
Justin Thomas

Trending Well Ahead of PGA Championship Despite Concerning Form
J.J. Spaun

Trending Up Ahead of PGA Championship
Adam Scott

Riding Strong Form Into PGA Championship
Patrick Reed

Looking to Make Another Run at PGA Championship
PGA

Sungjae Im Looks to Build on Strong Finish at Truist Championship
Sam Burns

Must Keep Ball in Play at PGA Championship
Jordan Spieth

Looks to Complete Career Grand Slam at Aronimink
Brandt Snedeker

Not the Best Option for the PGA Championship
Rasmus Hojgaard

a Volatile Option at PGA Championship
Maverick McNealy

Seeking Better Start in Philadelphia
Harry Hall

a Boom-or-Bust Option at Aronimink
Hideki Matsuyama

Attempts to Improve Over 2025 PGA Championship
Scottie Scheffler

Looks to Defend PGA Championship at Aronimink
Nicolai Hojgaard

Wants to Keep Momentum Rolling in Philadelphia
Ben Griffin

Attempting to Bounce Back After Truist Championship
CFB

Transfer Defensive Lineman Devarrick Woods Commits to Clemson
Harris English

Will Need His Putter to Thrive at Aronimink
Akshay Bhatia

Creative Flair Could Show Itself in Philadelphia
Keegan Bradley

Knows the Aronimink Golf Club Well
Si Woo Kim

Struggles at Truist Championship
Gary Woodland

Can Continue Incredible 2026 Season at PGA Championship
Xander Schauffele

In Excellent Form Heading to PGA Championship
CFB

Isaac Brown Has All-American Upside in 2026
CFB

Nyck Harbor Heading into Breakout Year?
CFB

Notre Dame, USC in Discussions to Resume Rivalry Series
CFB

Jaron-Keawe Sagapolutele Has Eyes on ACC Title
CFB

Ahmad Hardy's Gunshot Wound Not Viewed as Career-Threatening
Khamzat Chimaev

Suffers his First Loss
Sean Strickland

Recaptures Middleweight Title
Tatsuro Taira

Suffers Fifth-Round TKO Loss
Joshua Van

Defends Flyweight Title
MMA

Waldo Cortes-Acosta Drops Decision
Alexander Volkov

Wins Back-To-Back Fights
Shane Van Gisbergen

Dominates Watkins Glen for First Win of 2026
Michael McDowell

Finishes Second for Best Run of the Year At Watkins Glen
Ty Gibbs

Scores New Career-Best Finish of Third at Watkins Glen
Tyler Reddick

Continues His Strong Season With Fifth-Place Run at Watkins Glen
Austin Dillon

Earns his First Top-10 Finish of 2026 at Watkins Glen
CFB

Ahmad Hardy Sustains Gunshot Wound, in Stable Condition
RANKINGS
C
1B
2B
3B
SS
OF
SP
RP

RANKINGS

QB
RB
WR
TE
K
DEF