3 Impact Fantasy Baseball Prospects To Stash - Roman Anthony, Chase Dollander, Michael McGreevy

Zach analyzes three top fantasy baseball prospects - Roman Anthony, Chase Dollander, Michael McGreevy - who could make big impacts this season. These MLB prospects are potential waiver wire pick-ups or stashes.

The MLB season is in full swing, and we're almost three weeks into the season. While some teams are off to fast starts, others are seeking a boost from new additions. One way MLB teams give their team a jolt of fresh energy is by calling up some of their prospects from the minors. You can use some of the same young talent to add to your fantasy team as well. In this post, we'll focus on three players who could make a huge impact when they get the chance.

Roman Anthony of the Red Sox, Chase Dollander of the Rockies, and Michael McGreevy of the Cardinals all have the potential to be difference-makers. Let's take a look at each one's upside and the potential path to playing time.

We'll break down under what circumstances it makes sense to add them to your fantasy baseball roster and what you can expect from them when they are ready to get involved in the action.

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Roman Anthony, OF, Boston Red Sox

Current Level: Worcester Red Sox (AAA)
Availability: 27% rostered
2025 AAA stats: 13 G, .283/.441/.500, 2 HRs, 7 RBI, 13 BB, 1 SB

MLB Pipeline ranked Anthony as the No. 2 overall prospect in all of baseball at the start of the season, and he has the highest ceiling of the Red Sox group of top prospects, including breakout Kristian Campbell. Unlike Campbell, though, the Red Sox opted to have him start the season in Triple-A rather than in the major leagues.

Anthony split 2024  between Double-A and Triple-A, hitting .291 in 119 games with 18 home runs, 21 stolen bases, and a .401 wOBA. He started this season slowly in Triple-A but has caught fire, hitting everything hard over his last few starts.

Breakdown of Roman Anthony's (@RedSox) three-hit night for the Triple-A @WooSox:

1st: 103.8 mph double
5th: 103.7 mph double
8th: 107.6 mph single pic.twitter.com/dhjYpwrg7B

— MLB Pipeline (@MLBPipeline) April 12, 2025

He has a five-game hitting streak during which he has gone 9-for-22 (.409) with a pair of doubles. He only has two home runs on the season, but he has shown consistent contact and impressive exit velocity against both righties and lefties, and has an improved plate approach that has helped him work 13 walks in 13 games.

Anthony's OBP is up to .441 on the season, and he has an impressive 38.7 barrel rate percentage. His batted-ball metrics are elite, and he should continue to get plenty of hits and see an increase in power if he continues making such quality contact.

Anthony's outlook is a little complicated by the Red Sox MLB roster. Right now, Wilyer Abreu is off to a hot start, and there's no obvious place to plug Anthony into the outfield. Ceddanne Rafaela is scuffling a little bit, but the Red Sox just gave him a big extension and love his defense in center field. An injury or a trade could open up a clear lane for Anthony, but until then, he'll likely continue to get everyday at-bats in Worcester to continue to hone his plate approach.

Anthony is only 20 years old but already has some of the best bat speed in the minors. He's truly a versatile five-tool talent and will be a fan favorite and fantasy producer when his time does come. Since he doesn't have a clear path to playing time, though, I don't think he's a "must add" in mixed leagues at this point.

If you have the space to stash him, he could be worth it when he arrives, but that may not be any time in the immediate future. When it happens, he'll be an immediate add that will be worth a significant investment if your league uses FAAB.

Chase Dollander, SP, Colorado Rockies

Current Level: Colorado Rockies
Availability: 16% rostered
2025 MLB stats: 2 G, 1-1, 10 2/3 IP, 13 K, 3 BB, 5.06 ERA, 6.30 FIP, 1.22 WHIP

The Rockies have given Dollander two starts in their rotation, and he has already shown all the risk and rewards of rostering him. There's no question of his talent, but he is on one of the worst teams in the MLB and will have to pitch his home games in Denver in the rarified air of Coors Field.

Coming into the season, Dollander was ranked as the No. 23 prospect in all of baseball and the top prospect in the Rockies' farm system. He went 6-2 in 2024 while making 23 starts in High-A and Double-A, compiling a 2.59 ERA, 2.92 FIP, and an impressive 12.9 K/9.

Dollander started one game in Triple-A this season before the Rockies called him up for his debut. He faced the Athletics at home and got the win despite allowing four runs on seven hits across five innings. While earning his first MLB victory, he also flashed his upside in that game with six strikeouts.

He was even better his next time out, despite a tough matchup against the Padres. He had seven strikeouts in five 2/3 IP, giving up just two runs on three hits, but taking a tough-luck loss due to a lack of run support.

7⃣ punchouts for Chase Dollander!

MLB's No. 23 prospect averages 97.7 mph on his 65-grade heater over 5 2/3 solid innings for the @Rockies in his second big league start. pic.twitter.com/ZTJpXOe6tt

— MLB Pipeline (@MLBPipeline) April 13, 2025

Wins could be hard to come by for Dollander since the Rockies' lineup has been so unproductive this season. He could also have elevated ERA and FIP numbers due to his home games being at Coors Field. We've seen those risk factors play out already in just his first two outings.

However, we've also seen the impressive upside the young hurler brings. His impressive pitch mix should continue to play very well and help him pile up strikeouts. He's not without risk, but his ceiling makes him worth an add in many formats.

This week, Dollander will face the Nationals at Coors Field on Friday, and then he's lined up for a road start in Kansas City next week. Based on the rest of your starting pitching depth, Dollander is a great pickup to mix in when you need strikeouts and can sacrifice some ERA when he's at home. He also should continue to improve as the season goes on, since the 23-year-old still has more room to grow into a true ace.

Michael McGreevy, SP, St. Louis Cardinals

Level: Memphis Redbirds (AAA)
Availability: 3% rostered
2025 AAA stats: 4 G, 19 IP, 16 K, 4 BB, 4.26 ERA, 4.54 FIP, 1.26 WHIP

McGreevy is another potential ace in the making, although his strikeout potential has never been as high as Dollander's. He started the year ranked outside the top 100 prospects in baseball by MLB Pipeline, but did make the Cardinals' top 30, coming in at No. 10.

The 24-year-old righty started his career with St. Louis after the Cardinals drafted him in the middle of the first round of the 2021 MLB Draft. He has been a workhorse in the minors since being drafted, logging 144 IP in 2022, 153 IP in 2023, and 150 IP in 2024 before getting his first call-up to the MLB.

He made his debut last summer in a spot start on July 31. He made three more starts in September, finishing with an impressive 1.96 ERA, 2.56 FIP, and 7.04 K/9 over his 23 MLB IP. He went 3-0 and allowed zero or one run in three of those four starts.

Coming into spring training, he had a shot to make the Cardinals' Opening Day roster. He was again very effective, posting a 1.08 ERA with 12 strikeouts in 16 2/3 spring training IP. Despite that success, the Cardinals opted to start him at Triple-A this season and go with more experience in their starting rotation.

McGreevy gave up four runs in four IP in his first minor league start of the year with just two strikeouts, but he has righted the ship since then, allowing just five total runs over his last three outings with 14 strikeouts in 15 IP.

Michael McGreevy drops his first curveball of the night and gets the swinging strikeout with it pic.twitter.com/sLprBKeMvp

— Kyle Reis, 58% Neanderthal (@kyler416) April 17, 2025

Based on his effectiveness last fall and this spring, McGreevy will definitely have the potential to be mixed-league relevant when promoted to the MLB rotation. His strikeout numbers haven't been as outstanding as Dollander's, but he'll be joining a better team without the Coors factor.

If you have the roster availability, he's stashable at this point, but you can also wait and grab him when he's slotted into St.Louis's rotation at some point this season.

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