With September here and rosters expanded, several former stash list players like Jordan Lawlar, Sal Stewart and Carter Jensen have already made their way to the majors. Even with many top prospects receiving the call, there's still a solid group of names worth stashing as the 2025 season enters its final stretch.
Thanks for reading, and feel free to reach out in the comments or on X (@jerschneid14) with any questions or thoughts!
Stats updated through the morning of September 2. For more prospect coverage, check out our Top 400 MLB Prospects as well as our Top 20 prospects for each team.
Robby Snelling, SP, Marlins (#48, #8 P, #2 MIA)
Snelling continues to impress with steady, effective outings that reinforce his ability to dominate the minor leagues. He worked six innings of two-run ball Thursday, bringing his Triple-A Jacksonville line this season to a 1.38 ERA and 1.02 WHIP across 45.2 innings in eight starts, while totaling a 10.6 K/9 and no more than two runs allowed in any outing. Though the 21-year-old doesn't fit the mold of a prototypical power pitcher with overwhelming velocity, he consistently finds ways to overpower hitters and has pushed his way into the top-50 prospect conversation.
The Marlins opted not to promote Snelling immediately when rosters expanded, but there's still plenty of opportunity in a rotation thinned by injuries and inconsistency. Edward Cabrera (elbow), Janson Junk (elbow), and Ryan Gusto (shoulder) are all sidelined, leaving Eury Perez, Sandy Alcantara
With September here and rosters expanded, several former stash list players like Jordan Lawlar, Sal Stewart and Carter Jensen have already made their way to the majors. Even with many top prospects receiving the call, there's still a solid group of names worth stashing as the 2025 season enters its final stretch.
Thanks for reading, and feel free to reach out in the comments or on X (@jerschneid14) with any questions or thoughts!
Stats updated through the morning of September 2. For more prospect coverage, check out our Top 400 MLB Prospects as well as our Top 20 prospects for each team.
Robby Snelling, SP, Marlins (#48, #8 P, #2 MIA)
Snelling continues to impress with steady, effective outings that reinforce his ability to dominate the minor leagues. He worked six innings of two-run ball Thursday, bringing his Triple-A Jacksonville line this season to a 1.38 ERA and 1.02 WHIP across 45.2 innings in eight starts, while totaling a 10.6 K/9 and no more than two runs allowed in any outing. Though the 21-year-old doesn't fit the mold of a prototypical power pitcher with overwhelming velocity, he consistently finds ways to overpower hitters and has pushed his way into the top-50 prospect conversation.
The Marlins opted not to promote Snelling immediately when rosters expanded, but there's still plenty of opportunity in a rotation thinned by injuries and inconsistency. Edward Cabrera (elbow), Janson Junk (elbow), and Ryan Gusto (shoulder) are all sidelined, leaving Eury Perez, Sandy Alcantara, and Adam Mazur as the only healthy active starters. Even if some of the injured arms, including Ryan Weathers (lat), make it back before year's end, there's ample room for Miami to give their emerging pitching prospect a look in the majors before the 2025 season wraps up.
Quinn Mathews, SP, Cardinals (#120, #40 P, #5 STL)
Mathews continues to trend upward and is positioning himself as a possible late-season call-up. On Saturday, the southpaw turned in 5.1 scoreless innings, pushing his Triple-A Memphis numbers to a 3.49 ERA and 1.55 WHIP through 80 innings in 19 starts. He closed August particularly strong, posting a 2.27 ERA and 1.11 WHIP across 31.2 innings in six outings while trimming his walk rate to 3.7 BB/9. When Mathews is around the zone he's tough to square up, and recent signs of improved command make his profile even more intriguing.
The Cardinals' rotation is intact for now, but with the postseason virtually out of reach, the real intrigue lies in who might get an audition for the future. Andre Pallante and Miles Mikolas have struggled throughout the season, while both Pallante and Matthew Liberatore are pressing into uncharted workload territory at the big-league level. All of these factors could leave the door open for a fresh arm, and Mathews looks like the likeliest candidate to seize the opportunity.
Nelson Rada, OF, Angels (#184, #44 OF, #5 LAA)
Rada continues to impress at Triple-A, slashing .333/.440/.429 with an .869 OPS, two doubles, a triple, four RBI and seven steals over his last 10 games. The 20-year-old has been outstanding in 24 contests with Salt Lake, posting a .341/.469/.451 line with a .920 OPS, three doubles, two triples, a homer, 11 RBI and 16 stolen bases. While he doesn't profile as a power hitter, his advanced plate discipline, strong feel for the strike zone and elite speed make him a constant threat on the bases and a capable defender in center field.
A late-season call-up would be aggressive, but it's becoming more realistic by the week. His production in Triple-A is difficult to overlook, especially with the Angels giving starts to Bryce Teodosio and Matthew Lugo in center field. If Taylor Ward (forehead) ends up on the injured list following his nasty collision with the Crawford Boxes, the team could have a perfect opening to give Rada a look. His wheels will play anywhere, and the chance to see how his bat translates to the majors down the stretch would bring valuable intrigue.
Emmanuel Rodriguez, OF, Twins (#85, #17 OF, #4 MIN)
Rodriguez's push for a big-league call-up this season has been derailed by injuries, most recently a right oblique strain, though a promotion remains on the table as his health improves. He began a rehab assignment with Single-A Fort Myers on Wednesday and is 2-for-6 with three walks through two games. Before landing on the shelf in late July, the outfielder was slashing .254/.411/.428 with an .839 OPS, seven doubles, a triple, five homers, 23 RBI and seven steals across 43 games at Triple-A St. Paul. The top prospect's elite plate discipline jumps off the page, and his power potential runs deeper than the surface slugging numbers suggest.
Even after selling at the deadline, the Twins still feature a relatively crowded outfield picture. Byron Buxton remains the star attraction, while Matt Wallner has settled into a regular role, leaving Rodriguez to potentially battle for playing time with the likes of James Outman, Austin Martin, Kody Clemens and DaShawn Keirsey. Minnesota will almost certainly want him to re-establish his rhythm with Triple-A reps before making a move, but a late-season audition in the majors is still very much in play.
JR Ritchie, SP, Braves (#67, #18 P, #2 ATL)
Ritchie has emerged as a fast riser worth monitoring as he closes the year strong. The right-hander has strung together 11 straight scoreless innings over his last two starts, striking out 18 while walking five. After beginning the season in High-A Rome, he has climbed all the way to Triple-A Gwinnett, where he sports a 3.19 ERA and 1.04 WHIP across 42.1 innings in eight starts. While not a prototypical strikeout arm, the 22-year-old leans on a deep repertoire, featuring a low-to-mid-90s sinker and a curveball that has quickly developed into his arguably best pitch.
The Braves' rotation has battled injuries and inconsistency throughout the season. Chris Sale recently returned from a lengthy IL stint, and Hurston Waldrep has impressed in limited action, but the back end with Bryce Elder and Joey Wentz has been shaky. Promoting Ritchie in 2025 might be aggressive, but it would not be out of character for general manager Alex Anthopoulos, who has a reputation for pushing prospects quickly, to consider giving his fast-rising hurler a look over struggling veterans.
JJ Wetherholt, SS, Cardinals (#7, #6 SS, #1 STL)
Wetherholt shows no signs of slowing down, even if the Cardinals' front office continues to hold off on promoting him. The infielder is slashing .381/.469/.500 with a .969 OPS, five doubles, four RBI and four steals across his last 10 games with Triple-A Memphis. For the season at the level, he owns a .331/.423/.620 line with a 1.043 OPS, 12 doubles, a triple, nine homers, 21 RBI and seven stolen bases in 36 contests. The West Virginia product continues to prove himself as a complete player with legitimate superstar upside.
September roster expansion has not altered St. Louis' approach. Brendan Donovan (groin) has seen his rehab stall, Nolan Arenado (shoulder) has yet to begin a rehab assignment, and Alec Burleson (wrist) recently landed on the injured list. Those setbacks create clear opportunities for at-bats in the big-league lineup, but the team has not indicated any plans to call up Wetherholt before season's end. If that changes, he has the skills to contribute immediately, keeping him relevant as a stash candidate for the closing weeks of 2025.
Bryce Eldridge, 1B, Giants (#9, #1 1B, #1 SF)
Eldridge's prodigious power has been on full display, racking up three doubles, two homers and six RBI over his last seven games. Across 54 contests this season with Triple-A Sacramento, he's hitting .242/.316/.517 with an .833 OPS, nine doubles, 16 homers and 54 RBI. Few hitters can match his raw strength, as shown by his 43.4 percent hard-hit rate across the minors and a .275 ISO in Triple-A this year. The 20-year-old still battles swing-and-miss issues and could stand to boost his on-base numbers, but if he continues lifting and pulling the ball with authority, his power profile would play beautifully at Oracle Park with McCovey Cove looming in right field.
For now, the Giants don't have a clear opening with Rafael Devers, Dominic Smith (who has been steady this year) and veteran Wilmer Flores handling first base and DH duties. The front office seems committed to keeping their top prospect in the minors to log regular at-bats, which is understandable. Still, with the club trending toward a season without a playoff push, there's at least a chance they pivot and give Eldridge a late-season audition. Stashing that kind of power bat carries plenty of appeal.
Sam Aldegheri, SP, Angels (NR)
Aldegheri returns to the list after stringing together a strong finish to August, posting a 2.84 ERA and 1.01 WHIP across 31.2 innings in his last five starts. For the year at Double-A Rocket City, the 23-year-old owns a 3.78 ERA and 1.37 WHIP over 121.1 innings in 22 outings. He doesn't project as a frontline arm, but his four-pitch mix and track record of missing bats suggest more upside than his 2025 strikeout rate of 7.7 K/9 indicates.
The Angels' rotation remains in flux with Victor Mederos (shoulder) and Tyler Anderson (oblique) both sidelined, leaving Yusei Kikuchi, Jose Soriano and Kyle Hendricks as the only regular options. Los Angeles recently turned to Mitch Farris to debut and fill one spot, but another opening lingers. Aldegheri's recent run of success makes him a sensible choice to fill the gap, putting him quietly on the stash radar for the final stretch of 2025.
Noah Schultz, SP, White Sox (#159, #54 P, #6 CWS)
Schultz remains one of the more polarizing pitching prospects in baseball, and it isn't hard to see why. The towering left-hander dominated at Double-A to finish 2024 and start 2025, earning a promotion to Triple-A Charlotte in mid-June. Since then, though, the road has been bumpy. A right knee injury sidelined him for a few weeks, and he's struggled when available, posting a 9.37 ERA and 1.99 WHIP across just five starts and 16.1 innings. The numbers are ugly, but the sample is small and the injury context matters. The 2022 first-rounder has battled command issues this year, yet when he's in the strike zone he's almost unhittable, with elite whiff (36.4 percent) and in-zone swing rates (59.4 percent) that stand out even in a rough stretch.
The White Sox rotation has been shaky all season and remains unsettled. With Aaron Civale gone, the club may turn to Bryse Wilson, recently recalled and in the mix to cover starts, though he now looks more suited for a swingman or multi-inning relief role than a steady rotation spot. If Schultz can put together a solid outing or two in Triple-A, Chicago may see an opening to give their top pitching prospect a look in the majors before the year is up.
Forrest Whitley, SP, Rays (NR)
The list wraps up with a less conventional but nevertheless recognizable name in Whitley. Once a highly-touted prospect, he's struggled in his 10 big-league outings this season with Houston and Tampa Bay, but his recent work on the farm has been excellent. Deployed in a starting role at Triple-A Durham rather than being limited to short relief, the right-hander has thrived, posting a 2.38 ERA and 0.98 WHIP across 10 appearances (nine starts) and 45.1 innings. His deep pitch mix plays far better in the rotation, where he can alternate between his fastball (36.5 percent usage) and more dangerous putaway offerings like the changeup and slurve.
The Rays' playoff chances remain alive, though barely, and while Ian Seymour has seemingly slotted into the fifth starter spot, Whitley's ability to provide multi-inning length could prove valuable down the stretch. At age 27, it's a stretch to still call him a prospect, but his lack of major-league experience keeps him rookie-eligible. Given his recent success and the quality of his stuff, Whitley is a sneaky, outside-the-box stash candidate.
