In this edition of the DoubleScoopBaseball Prospect Review, we shine a light on prospects from every corner of the minor leagues. Some of these prospects are generating buzz, while others flying under the radar but are worthy of some attention. From Dominican Summer League and Complex League long shots with intriguing tools to upper-level talents knocking on the big-league door, we round up the names you need to know.
Konnor Griffin
Konnor Griffin was just elevated to the No. 13 spot on MLB Pipeline’s updated Top 100 released July 2nd. It was a well-earned jump that still feels conservative from a fantasy perspective.
In his first pro season, Griffin is steamrolling through minor league competition. Not even a promotion to High-A has cooled him off as he’s improved both his walk rate (11.2%) and strikeout rate (20.6%). If he keeps this pace, another promotion to Double-A may not be far off, joining fellow young standouts like Sebastian Walcott and Nelson Rada as one of the few 19-year-olds at Double-A.
Griffin has stood out in our modeled barrel rate leaderboard and has been amongst the leaders at Single-A and High-A.
At 6’4”, 225 lbs., Griffin is physically mature and blends raw power with speed. Given the Pirates’ current rebuild, there’s no urgency to rush him to the bigs. Expect him to earn a Double-A promotion sometime in 2025, with a late 2026 MLB debut within reach if he continues to produce at a high level. With minimal internal competition for the future shortstop role in Pittsburgh, the runway is wide open.
Griffin is one of the only position players in the minors with legitimate 40/40 upside. If you’re in dynasty formats, he should be a top-tier target. Don’t be surprised if he’s a front-runner for the 2027 Rookie of the Year race.
Sebastian Walcott
One of my personal favorite prospects in the minors, I got the chance this year to get video of Walcott in Spring Training during live at bats against Nate Eovaldi and Jacob Webb, link to post here. Sebastian Walcott is a 6’4” shortstop from the Bahamas who kicked off the 2025 season in Double-A at just 19 years old. As the youngest qualified hitter at the level, he’s holding his own with a .243/.342/.382 slash line, a 106 wRC+, 8 home runs, and 19 stolen bases through 75 games.
Walcott is on track to post career bests in strikeout rate (21.7%) across a full minor league season. The age-to-level production is the real headline here and puts him in elite company. For comparison, here’s how current MLB stars performed during their age-19 seasons in Double-A:
Although the power output is down a bit from previous years, it’s encouraging to see him improve his plate approach against more advanced pitching. He’s flashed 115+ mph max exit velocities in the past and while his current modeled barrel rate (5.8%) is about league average, that’s still an impressive mark for a teenager in Double-A. There’s reason to believe the raw power will translate into more game production with time.
Walcott possesses a unique blend of plus speed, discipline, and top-grade power potential. That said, there’s some risk baked into his profile. His contact rate sits at 70.9%, and his called-strike-plus-whiff rate (CSW) hovers around 30% which suggests a potential for a 25–30% K-rate in the majors. It is also worth monitoring his defensive development, as he’s already seeing reps at third base and may ultimately shift off shortstop.
With hot years from Konnor Griffin and Kevin McGonigle, I have not seen Walcott’s name thrown around as often. He profiles as a consensus top 10 fantasy prospect and has the tools to become a future fantasy star regardless of whether he sticks at shortstop or finds a permanent home at the hot corner.
Eduardo Quintero
The Dodgers’ farm system continues to burst with top-end talent with Josue De Paula, Zyhir Hope, Alex Freeland, Mike Sirota, and Eduardo Quintero drawing plenty of attention. But the youngest of the bunch, 19-year-old Eduardo Quintero, might have the highest ceiling of them all.
Through 71 games, Quintero has slashed an eye-popping .305/.419/.541 with 13 HRs and 33 SBs, a 162-game pace of 30 HRs and 75 SB.s. The power and speed aren’t his only assets either. His contact rate sits at a healthy 78.4%, and his 8.1% swinging strike rate shows a strong bat to ball skill as well. His 9.3% modeled barrel rate, more than double the A-ball average of 4.1%, points to a polished blend of contact and power.
That said, Quintero’s approach at the plate is something to monitor. Though I haven’t seen him live, data suggests a passive approach: a 38.1% swing rate and a 21.1% called strike rate. To put that in perspective, both marks would rank top 10 in MLB among qualified hitters this season. That’s not necessarily a red flag, some of the best hitters in baseball (Juan Soto, Kyle Schwarber, James Wood) thrive with patient approaches. But as Quintero faces tougher pitching, he could possibly benefit from some more selective aggressiveness.
The Dodgers’ High-A outfield is crowded with talent (Hope, De Paula, Mike Sirota, and Kendall George) so Quintero may need to wait for some organizational movement to see his next test.
Only ranked as MLB Pipelines 90th ranked prospect, now is the time to strike. In dynasty leagues, he is a must-roster on your leagues prospect spot/roster, particularly in roto formats, where his blend of speed and power gives him 20/40 upside. If you’re making trade deadline pushes, Quintero is the perfect “throw-in” target with star-level upside.
Jonah Tong
Couldn’t write my first prospect spotlight without including my biggest pitching crush, Jonah Tong. Drafted in the 7th round out of Georgia Premier Academy in 2022, Tong made his pro debut in 2023 and has been nothing short of electric since. He’s posted a 30%+ K-rate at every stop, and in 2025 he’s taken it to another level, leading all qualified minor leaguers with a jaw-dropping 40.5% strikeout rate
Tong attacks hitters with a four-seam, curveball, cutter-slider hybrid, and changeup. He operates from a high arm slot with a loose, whip-like delivery that’s drawn comparisons to Tim Lincecum. Listed at 6’1”, 180lbs, Tong maximizes every bit of his frame: dropping into his back leg and exploding through a firm lead leg. Check out him pitching below:
While his four-seam velocity is average for a right hander, it plays up thanks to great shape. MLB Pipeline reports he averages 20+ inches of induced vertical break (IVB) on the heater, pairing beautifully with a hammer curveball that boasts 65+ inches of vertical drop. That north-south movement tunnels well and dominates both righties and lefties. Tong has also added a Vulcan-grip changeup that’s made big strides in 2025, generating whiffs against RHB and LHB.
His numbers have been video game like. His combination of elite K%, GB%, and average against (AVG) is practically unprecedented at the Double-A level.
Nick Pivetta came up when searching for other four-seam/curveball heavy pitchers with high arm slots. Both throw from a steep arm slot and lean on a four-seam/curveball combo. Yet, Tong’s release height is lower, with greater pitch movement, and he’s already flashing a plus changeup, an edge Pivetta never quite developed.
The Mets may turn to Tong as a late-season call-up if their playoff push intensifies, and time is running out to grab shares in dynasty formats. Pitchers with 30%+ K-rates and 45%+ groundball rates in the majors since 2021 include Corbin Burnes, Garrett Crochet, Shane McClanahan, Tarik Skubal, and Hunter Brown.
Currently rated MLB Pipeline’s No. 10 pitching prospect and No. 59 overall, Jonah Tong still feels underrated. If he converts even 80% of his current performance to the big leagues, we are looking at another rookie phenom.
Juneiker Caceres
Signed out of Venezuela in 2024, Juneiker Caceres wasted no time jumping into pro ball at 16 and dominating both the DSL and Complex levels. Now 17, Caceres is flashing one of the most polished offensive approaches in rookie ball, posting .900+ OPS marks at both stops while walking more than he strikes out.
In the Florida Complex League, he’s posted an 11.7% strikeout rate, backed by a strong 84.5% contact rate and 6.6% swinging strike rate, showcasing strong bat to ball skills for someone his age. His modeled barrel rate sits just above league average, an encouraging sign for a teenager still maturing physically, listed on FanGraphs as 5’10” and 168 lbs.
While he’s likely an average runner, Caceres has primarily played left and rightfield, projecting long-term as a corner outfielder. What he may lack in premium defensive value, he makes up for with an intriguing offensive foundation: plus hit tool, high OBP profile, and average power. As he continues to build out, the power could uptick which would make him a more exciting profile.
These are the types of CPX-level bats that can catch fire quickly in the public eye, just ask anyone who was early on Luis Peña or Jesus Made. While Caceres may not have their defensive versatility or speed, his high-contact, high-discipline bat gives him a high-floor trajectory that could take off with growth in his power.
For dynasty managers with deep benches or open prospect slots, Caceres is exactly the type of early dart throw that could yield major returns.
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