Fantasy Baseball Prospects Stash List: Ready to Make a Splash for Redraft Leagues (Week 6)

Joey's fantasy baseball prospects to stash list for Week 6 of 2025. HIs top MLB prospects and rookie sleepers to make fantasy impacts this year when called up.

Stashing the right prospects this early in the season could really make a difference for your team in the coming months. Just look at those fantasy managers who stashed Paul Skenes or James Wood last season. Both players started the year in the minors but made an immediate impact in the majors once they were both promoted.

As a result, fantasy managers should be carrying at least one prospect on their fantasy roster right now. In this article, we will go through six prospects who should be stashed in most leagues. All six players on this list are currently tearing it up at Triple-A and could be called up in the coming weeks.

So, which prospects should fantasy managers stash for Week 6 of the fantasy baseball season? Let's dive in and find out.

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Bubba Chandler, SP, Pittsburgh Pirates

It was at this point last year that fantasy managers were wondering when Skenes would be called up. He dominated at Triple-A and showed that he was MLB-ready. Those same things can be said about starting pitcher Bubba Chandler this season. Chandler currently owns a 1.42 ERA and 36 strikeouts across his six starts at Triple-A Indianapolis this season.

Chandler has almost been untouchable in those six outings and just threw five innings of one-run ball with nine strikeouts in his most recent start on Thursday. With Pittsburgh's top prospect continuing to show his potential, it's only a matter of time until the Pirates promote the right-hander to their major league roster.

A season-high nine strikeouts for Bubba Chandler. ⚔️ pic.twitter.com/3jO8flahNN

— Indianapolis Indians (@indyindians) May 2, 2025

MLB Pipeline's No. 14 overall prospect is coming off his best season in the minors, finishing with a combined 3.08 ERA and 148 strikeouts across 119 2/3 innings pitched at Double-A and Triple-A in 2024. Given that the Pirates called up Skenes on May 11 last season, there's a good chance that Chandler is up with Pittsburgh in the next few weeks.

Therefore, the right-hander should be stashed in every fantasy league heading into Week 6. He has held opposing hitters to a mere .122 batting average in his six starts this season and has the tools to make an immediate impact in the majors.

Chandler has a fastball that tops out at 101 mph to go with an above-average slider. The 22-year-old really shouldn't be on any waiver wires right now, with his debut looming.

Roman Anthony, OF, Boston Red Sox

Boston Red Sox prospect Roman Anthony is another player who shouldn't be on any waiver wires. As a matter of fact, he might be the best prospect stash in fantasy right now. Anthony has put up multiple strong seasons in the minors and really broke out during the 2023 campaign. He hit .272 with 14 home runs, 64 RBI, and 16 stolen bases across 106 games that year. 

Now, Anthony is off to a fantastic start at Triple-A Worcester this season. In his first 26 games, MLB Pipeline's No. 2 overall prospect is slashing .290/.422/.527 with five home runs, five doubles, 15 RBI, and two stolen bases. Along with those elite numbers, the 20-year-old outfielder is leading all Triple-A players with a 31.3 percent barrel rate to begin the year.

So, it's safe to say that Anthony will get his opportunity in the majors at some point in 2025. He has been making hard contact all year and is surely MLB-ready. The only problem is that there isn't anywhere for him to play right now. With Jarren Duran, Ceddanne Rafaela, and Wilyer Abreu occupying the three outfield spots, Boston's top prospect is blocked.

However, Anthony could eventually replace Rafaela as the team's full-time outfielder. Rafaela has struggled at the plate in the early going, hitting just .213 with two home and 15 RBI in his first 28 games. That makes the 20-year-old a must-stash prospect heading into Week 6. He should be called up in the coming weeks.

Jordan Lawlar, SS, Arizona Diamondbacks

It's crazy that shortstop Jordan Lawlar is still not up with the major league club. He has arguably been the hottest hitter in Triple-A this season and doesn't have much more to prove in the minors. Lawlar is currently hitting .381 with six home runs, 13 doubles, 30 RBI, and 12 stolen bases across his first 28 games at Triple-A Reno.

Lawlar has also been red-hot at the plate over the past week and a half. The 22-year-old has eight multi-games over the last 10 contests to go with two home runs, seven doubles, 16 RBI, and eight stolen bases since April 18. Given this strong offensive stretch, there's no doubt that Arizona's top prospect deserves to be in the majors already.

Jordan Lawlar leads four different minor league stat categories😳

👑Runs
👑Total Bases
👑Extra-Base Hits
👑Hits

(🎥@Aces)
pic.twitter.com/scuU0COoe4

— Baseball America (@BaseballAmerica) May 2, 2025

Although he struggled in his first go around with the Diamondbacks back in 2023, Lawlar is a much more polished player than he was two seasons ago. As a result, he has every opportunity to be a strong fantasy option right away. The bad news, though, is that there is nowhere for the young infielder to play.

With Ketel Marte (second base) and Geraldo Perdomo (shortstop) occupying the two middle infield spots, Lawlar wouldn't see much playing time if he was promoted right now. He could eventually overtake Eugenio Suarez's spot at third base, but the Diamondbacks might not be ready to make that move just yet.

So, it might be a few more weeks until we see MLB Pipeline's No. 10 overall prospect in the majors. Still, Lawlar is absolutely worth a stash in most leagues. The 22-year-old is tearing it up at Triple-A Reno, and that strong production could certainly carry over into the majors.

Matt Shaw, 3B, Chicago Cubs

The Chicago Cubs were set on having Matt Shaw be their everyday third baseman in 2025. He was certainly deserving of that following two strong minor league seasons. Shaw hit .357 with eight home runs, 28 RBI, and 15 stolen bases in 38 games at rookie ball, High-A, and Double-A in 2023 and followed up those numbers by hitting .284 with 21 home runs, 71 RBI, and 31 stolen bases at Double-A and Triple-A last season.

However, Shaw definitely struggled in his first taste of the big leagues to begin the 2025 season. He was slashing .172/.294/.241 with one home run, one double, three RBI, and 18 strikeouts across 58 at-bats. That slow start resulted in MLB Pipeline's No. 18 overall prospect being optioned down to Triple-A after just 18 games.

Fantasy managers, though, shouldn't give up on the young third baseman just yet. He will get his opportunity again in the majors, and his promotion could come very soon. Shaw is hitting .324 with one home run, three doubles, and four RBI in his first 10 games at Triple-A. With the Cubs not getting much production from their current third basemen, the 23-year-old should be called up again sometime in May.

Cade Horton, SP, Chicago Cubs

If fantasy managers are looking for a prospect to stash for later in the season, starting pitcher Cade Horton could be a sneaky one. Even though he missed most of the 2024 season due to a back injury, Horton is finally showing why he is regarded as one of the best pitching prospects in baseball. The Cubs' No. 2 prospect currently owns a 1.17 ERA and 28 strikeouts in his five starts at Triple-A Iowa this season.

Horton has truly been spectacular down in Triple-A and just threw the first quality start of his minor league career earlier this week. The right-hander delivered six innings of one-run ball with five strikeouts on April 29. As a result, MLB Pipeline's No. 48 overall prospect is someone to keep an eye on on the waiver wire.

Cade Horton continues to look like a Top Pitching prospect this season as his fastball velocity is back and his secondaries look as good as always

Expect him to be up with Chicago this summer! pic.twitter.com/GATVual5Pn

— Thomas Nestico (@TJStats) April 30, 2025

The potential is there for Horton to be a solid fantasy option in Year 1, and there is a path for the 23-year-old to be promoted in the coming months. With the Cubs losing Justin Steele (elbow) for the season, he could eventually take Ben Brown or Colin Rea's spot in the rotation. Just don't expect him to be promoted until later in the year.

Coby Mayo, 1B/3B, Baltimore Orioles 

Of all the prospects on this list, infielder Coby Mayo is likely the one to be called up the soonest. He continues to put up strong numbers in the minors, and Orioles general manager Mike Elias said on Friday that Mayo is "really close" to being called up. That makes him a strong stash candidate heading into Week 6 of the fantasy baseball season.

Mayo is slashing .255/.352/.529 with six home runs, seven doubles, and 21 RBI across 27 games so far this season and has logged four multi-hit games over his last seven contests. With third baseman Jordan Westburg (left hamstring strain) on the 10-day injured list and first baseman Ryan Mountcastle struggling at the plate, there's a strong possibility MLB Pipeline's No. 13 overall prospect could be promoted in the next few days.

So, he's someone that should be rostered in most 12-plus team leagues right now. Despite only totaling four hits across his first 41 at-bats (.098) in 17 major league games last season, Mayo will definitely post better numbers this time around. He has such raw power at the plate and has totaled at least 25 home runs in back-to-back minor league campaigns. That surely makes him worth a pickup. 

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