Every MLB Team's Best Teenage Prospect in 2025
The closer an MLB prospect is to the big leagues, the easier it is to project future success. But that doesn't mean top-100 prospect lists are exclusively filled with players who are suiting up at the Double-A and Triple-A levels.
Some of the game's top prospects are still teenagers cutting their teeth in the lower levels of the minors, including consensus top-25 prospects Leo De Vries (SD), Sebastian Walcott (TEX), Colt Emerson (SEA) and rising top prospect Jesús Made (MIL), who was part of the 2024 international class.
That list is just a sampling of the young talent that represents the next wave of rising stars in the sport. Every team has at least one teenager with significant long-term upside and potential.
Here, we've highlighted each team's best teenage prospect. Included is a look at where each player ranked on B/R's preseason Top 100 prospect list (if applicable) and a quick scouting report on what they bring to the table.
The future of baseball is in good hands with this group of up-and-coming talent.
AL East
1 of 6
Baltimore Orioles: RHP Keeler Morfe (Age: 18)
Morfe turned heads in his first season stateside last year, posting a 2.76 ERA, 1.10 WHIP and 49 strikeouts in 32.2 innings between rookie ball and Single-A to emerge as one of the top pitching prospects in an Orioles system that is thin on arms. His undersized 5'8" frame could mean a future in the bullpen, but he has the stuff to start, and has drawn some comparisons to two-time All-Star Carlos Martínez.
Boston Red Sox: SS Franklin Arias (Age: 19)—No. 80 on B/R Top 100
Signed for $525,000 as one of the top defensive shortstop prospects in the 2023 international class, Arias has emerged as a top-tier prospect thanks to better-than-expected offensive production. He hit .309/.409/.487 with 36 extra-base hits and 35 steals in 87 games last year, and a hot start at Single-A to open 2025 led to an early promotion to High-A.
New York Yankees: SS George Lombard Jr. (Age: 19)—No. 99 on B/R Top 100
With Jasson Domínguez exhausting his prospect status early in the 2025 season, Lombard now stands as the No. 1 prospect in the Yankees system. The No. 26 overall pick in 2023, he hit .329/.495/.488 over his first 24 games at High-A this year to earn an early promotion to Double-A, and he is still a few weeks away from his 20th birthday on June 2.
Tampa Bay Rays: OF Theo Gillen (Age: 19)—Next 50 on B/R Top 100
The Rays have a few candidates for top teenage prospect honors, including outfielder Brailer Guerrero (18) and right-hander Trevor Harrison (19), but Gillen gets the nod on the strength of one of the best hit tools in the 2024 draft class. The No. 18 overall pick in last year's draft has a 60-hit, 55-power offensive profile, and the Rays moved him to the outfield to start his pro career after he played primarily shortstop in high school.
Toronto Blue Jays: SS Arjun Nimmala (Age: 19)—No. 91 on B/R Top 100
The headliner of a Blue Jays system that ranked No. 28 in the league heading into the season, Nimmala is a raw talent with huge offensive upside. He posted an .807 OPS with 20 doubles and 17 home runs in 391 plate appearances between rookie ball and Single-A in his first full professional season, though he hit just .232 with a 30.7 percent strikeout rate to illustrate his still-developing overall game.
AL Central
2 of 6
Chicago White Sox: OF George Wolkow (Age: 19)
A towering 6'7", 239-pound outfielder who was originally part of the 2024 draft class, Wolkow reclassified to 2023 and landed an above-slot $1 million bonus in the seventh round. He logged an .808 OPS with 18 doubles, 13 home runs and 56 RBI in 91 games last season while reaching Single-A, and he comes with the same developmental questions as most 40-hit, 60-power sluggers.
Cleveland Guardians: 1B Ralphy Velazquez (Age: 19)—No. 93 on B/R Top 100
Velazquez offered one of the more intriguing offensive profiles in the 2023 high school class, and the Guardians quickly shifted him from catcher to first base so he could focus on hitting. He hit .231/.347/.385 with 23 doubles, 11 home runs and 61 RBI in 101 games between Single-A and High-A last year, and he could take off once he gets more games under his belt.
Detroit Tigers: SS Bryce Rainer (Age: 19)—No. 73 on B/R Top 100
Rainer was the second high school player taken in the 2024 draft, going two picks after Konnor Griffin at No. 11 overall to the Tigers. He has a well-rounded skill set, with the potential for above-average hit, power and speed tools. He also profiles as a better defender long-term than Kevin McGonigle, which could make him the shortstop of the future in Detroit.
Kansas City Royals: LHP David Shields (Age: 18)
The Royals signed Shields away from a commitment to the University of Miami with a $2.3 million bonus as the No. 41 overall pick in the 2024 draft, making him the fifth high school pitcher off the board. With an athletic 6'2", 210-pound frame, clean mechanics and good overall command, he could move quicker than most prep arms through the lower levels of the minors.
Minnesota Twins: RHP Charlee Soto (Age: 19)
Still a raw talent on the mound and one of the younger players in the 2023 draft class, Soto racked up 87 strikeouts in 74 innings at Single-A in his pro debut last season. He has a 6'3", 210-pound frame, three plus offerings and a wealth of untapped upside. The Twins have had better success developing their in-house pitching talent in recent years, and he could be the next to emerge as a top-tier prospect.
AL West
3 of 6
Athletics: SS Ayden Johnson (Age: 17)
Johnson has been hyped as the "most polished prospect to ever enter pro ball" out of the Bahamas, joining the Athletics on a $1.5 million bonus as one of the headliners of their 2025 international haul. He stands out more for his floor than his ceiling at this point, but also offers significant physical projection that could change his outlook.
Houston Astros: OF Kevin Alvarez (Age: 17)
The $2 million bonus the Astros gave Alvarez was the largest they handed out to anyone in their 2025 international class, and it will be money well spent if he grows into his 6'4", 184-pound frame as hoped and develops into a middle-of-the-order bat. His 55-grade hit tool is his best present piece of the prospect puzzle, and with a smooth left-handed swing and good athleticism, he fits the projectable slugger mold.
Los Angeles Angels: SS Joswa Lugo (Age: 18)—Next 50 in B/R Top 100
Lugo was one of the top early performers of the 2024 international class, hitting .301/.370/.466 with 19 extra-base hits and 18 steals over 53 games in the Dominican Summer League. He has plenty of room to grow into his 6'3", 187-pound frame, and that could eventually push him to third base, but his 55-grade power and plus arm would fit just fine at the hot corner.
Seattle Mariners: SS Colt Emerson (Age: 19)—No. 19 on B/R Top 100
The Mariners are loaded with high-ceiling middle infield talent, and shortstop Felnin Celesten (19) would have been the pick for almost any other team, but Emerson gets the nod on the strength of one of the best hit tools in the minors. The No. 22 pick in the 2023 draft hit .263/.393/.376 with a healthy 14.9 percent walk rate across three minor league levels last year while reaching High-A at the age of 18, and that earned him a 65-grade hit tool.
Texas Rangers: SS Sebastian Walcott (Age: 19)—No. 11 on B/R Top 100
Walcott might be the favorite to open the 2026 season as the No. 1 prospect in baseball after taking a major step toward turning his immense raw talent into on-field production last year. He hit .265/.344/.452 with 34 doubles, 11 home runs, 56 RBI and 27 steals in 121 games, closing out the year with five games at Double-A, and he will play the entire 2025 season at the age of 19. He could eventually outgrow shortstop, but third base and right field would both be clean fits.
NL East
4 of 6
Atlanta Braves: LHP Cam Caminiti (Age: 18)—No. 97 on B/R Top 100
The first high school pitcher taken in the 2024 draft at No. 24 overall, Caminiti is now the top prospect in the Braves system after catcher Drake Baldwin graduated to the majors. Armed with a fastball that touches 98 mph and three quality offspeed pitches, he has the stuff to develop into a frontline starter, and the athleticism that allowed him to also play center field in high school translates well to the mound.
Miami Marlins: SS Starlyn Caba (Age: 19)—No. 76 on B/R Top 100
The Marlins acquired Caba in the deal that sent Jesús Luzardo to the Phillies, and with a plus hit tool and elite defensive skills he immediately became the shortstop of the future. Unfortunately, his development is on hold after he suffered a thumb sprain that landed him on the 60-day IL. Shortstop Andrew Salas (17) is also one to watch after signing for $3.7 million as one of the top 2025 international prospects.
New York Mets: SS Elian Peña (Age: 17)
Only Roki Sasaki ($6.5 million) received a larger bonus in the 2025 international class than the $5 million the Mets shelled out to sign Peña, and he enters pro ball with a similar profile to Padres shortstop Leo De Vries who has quickly emerged as an elite prospect. His 60-hit, 55-power offensive profile could make him one of the stars of the Dominican Summer League this year, quickly vaulting him onto leaguewide Top 100 lists.
Philadelphia Phillies: C Eduardo Tait (Age: 18)—No. 89 on B/R Top 100
Signed for a modest $90,000 out of Panama in 2023, Tait has quickly developed into one of the best catching prospects in baseball. He hit .302/.356/.486 with 18 doubles, 11 home runs and 73 RBI in 80 games between rookie ball and Single-A last year, throwing out 22 of 71 base stealers along the way. His receiving skills are still a work-in-progress, but he has the potential to be an everyday catcher with All-Star upside.
Washington Nationals: LHP Alex Clemmey (Age: 19)—Next 50 on B/R Top 100
Clemmey landed a $2.3 million bonus as a second-round pick by the Guardians in 2023, and he was flipped at the trade deadline last year in the Lane Thomas deal. With a projectable 6'6", 205-pound frame and a plus fastball/slider combination, he has huge upside if he can smooth out his mechanics and develop his changeup into a reliable third offering. He is a developmental prospect, but one with a No. 2 starter ceiling.
NL Central
5 of 6
Chicago Cubs: SS Juan Tomas (Age: 17)
A tooled-up, switch-hitting shortstop prospect who one scout compared to Elly De La Cruz (via MLB.com), Tomas was signed for $1.1 million in January to give the Cubs another high-ceiling position player. He is still extremely raw, and a recent growth spurt is part of the reason his stock is trending up, so there is a lot of volatility in his long-term outlook. The tools are there for him to develop into a 30/30 shortstop or center fielder if everything clicks.
Cincinnati Reds: C Alfredo Duno (Age: 19)—Next 50 on B/R Top 100
Somewhat overshadowed by fellow catcher Ethan Salas in the 2023 international class, Duno was a hyped prospect in his own right, landing a $3.1 million bonus and immediately becoming one of the Reds' top prospects. He has a .269/.394/.452 line with 26 doubles, 13 home runs and 79 RBI in 113 games since starting his pro career, and he checks all the boxes to be a quality defender behind the dish.
Milwaukee Brewers: SS Jesús Made (Age: 18)—No. 51 on B/R Top 100
The Brewers have two of the top early standouts from the 2024 international class in Made and Luis Peña (18), and there is a good chance both will find their way onto leaguewide Top 100 prospect lists by the end of 2025. Made hit .331/.458/.554 with 21 extra-base hits, 28 steals and more walks (39) than strikeouts (28) over 51 games in the Dominican Summer League last year to move to the top of the Brewers organizational prospect list, and he has backed it up with a hot start at Single-A in 2025.
Pittsburgh Pirates: SS/OF Konnor Griffin (Age: 18)—No. 72 on B/R Top 100
Griffin is off to as good of a start as any prospect in baseball this year, hitting .315/.362/.523 with 16 extra-base hits and 17 steals over 35 games in his pro debut at Single-A. He was the first high school player taken in the 2024 draft at No. 9 overall, and he offers a rare 60-power, 65-speed profile with the athleticism to stick at shortstop or shift to center field once he arrives in the majors. He could be a consensus top-25 prospect by midseason.
St. Louis Cardinals: C Rainiel Rodriguez (Age: 18)
The Cardinals have a strong track record of developing catcher talent, and Rodriguez was an early standout from their 2024 international class after signing for $300,000. He hit .345/.462/.683 with 12 doubles, 10 home runs and 38 RBI in 42 games in the Dominican Summer League, and while he is still raw defensively, he also threw out 23 of 71 base stealers.
NL West
6 of 6
Arizona Diamondbacks: OF Slade Caldwell (Age: 18)—Next 50 on B/R Top 100
Cut from a similar cloth to Corbin Carroll with an undersized frame, plus speed and one of the most advanced hit tools in his high school class, Caldwell was taken No. 29 overall in the 2024 draft. He is off to a terrific start this year in his pro debut, hitting .297/.481/.500 with 35 hits and 37 walks in 36 games at Single-A. Can he develop enough extra-base pop to be an impact player?
Colorado Rockies: OF Robert Calaz (Age: 19)—No. 96 on B/R Top 100
After a strong pro debut in 2023, Calaz made his way stateside last year and hit .344/.446/.633 with 14 doubles, 12 home runs, 56 RBI and 15 steals in 62 games between rookie ball and Single-A. He has some of the best raw power in the Rockies system and a 6'2", 202-pound frame that still offers further physical projection. There is legitimate five-tool upside here, though he does still need to refine his approach.
Los Angeles Dodgers: OF Josue De Paula (Age: 19)—No. 29 on B/R Top 100
With a 60-hit, 60-power offensive profile, De Paula has one of the highest ceilings of any player on this list, and with Dalton Rushing now in the majors he stands as the top prospect in the Dodgers system. His 20th birthday is on Saturday, so he literally just made the cut for this list, and he is hitting .285/.417/.511 with 16 extra-base hits in 38 games at High-A to open the year.
San Diego Padres: SS Leo De Vries (Age: 18)—No. 14 on B/R Top 100
The Padres signed De Vries for $4.2 million in 2024, giving them the No. 1 prospect in the international class in back-to-back seasons after they landed Ethan Salas the previous year. De Vries has since overtaken Salas as the top prospect in the system, hitting .237/.361/.441 with 22 doubles, 11 home runs, 38 RBI and 13 steals in 75 games while making his pro debut at Single-A. He is putting up even better numbers at High-A this year and should be squarely in the conversation for No. 1 prospect in baseball to start the 2026 season.
San Francisco Giants: SS Josuar De Jesus (Age: 17)
De Jesus might have been the No. 1 prospect in the 2025 international class if not for Roki Sasaki, with a 60-hit, 60-power offensive profile and the quick-twitch athleticism to stick at shortstop. He turned heads at the 18U World Cup in Panama last summer, going 8-for-22 with four extra-base hits and five steals in seven games. He could quickly join Bryce Eldridge among the Giants' top prospects.
.jpg?w=600 "Mahomes Pitch Resurfaces 😅")
