2025 Stats
AVG
.000
HR
0
RBI
0
R
0
SB
0
2026 Projections
2026 Fantasy Outlook
De Los Santos is still 22 and is on the Marlins' 40-man roster, but it's tough to envision him providing enough offensive value in the big leagues to make up for his lack of defensive value. The righty-hitting corner infielder was expected to compete for big-league at-bats early last season, but he never forced a promotion from Triple-A and was 15 percent worse (85 wRC+) than the average International League hitter. De Los Santos cut his swing rate from 58.2 percent in 2024 to 51.4 percent in 2025 while upping his contact rate from 66.2 percent to 71 percent, so the Marlins are clearly working with him and getting results. Unfortunately, his groundball rate remains an issue (51.3 percent) and De Los Santos makes so much weak contact that his overall hard-hit rate was middling (43.9 percent) despite the fact he had an elite 118.5 mph maxEV. Given his age, raw power and slowly improving swing decisions, the Marlins figure to give De Los Santos another big-league camp to impress, but he enters 2026 with a chance to make his big-league debut and also a chance to lose his 40-man roster spot before the season is over. Read Past Outlooks
Signed a one-year contract with the Marlins in March of 2025.
Nursing quad strain
Triple-A Jacksonville placed De Los Santos on the 7-day injured list Saturday due to a left quadriceps strain, Kevin Barral of FishonFirst.com reports.
Analysis
Given De Los Santos' defensive shortcomings, he wasn't necessarily pushing for a promotion prior to the injury, as he was slashing .250/.317/.399 with five home runs and a 30.5 percent strikeout rate through 40 games in his second season at Triple-A. He has started 30 games at first base and five games at third base in 2025 and should still have hope of making his MLB debut later this season if he can quickly move past the injury.
Given De Los Santos' defensive shortcomings, he wasn't necessarily pushing for a promotion prior to the injury, as he was slashing .250/.317/.399 with five home runs and a 30.5 percent strikeout rate through 40 games in his second season at Triple-A. He has started 30 games at first base and five games at third base in 2025 and should still have hope of making his MLB debut later this season if he can quickly move past the injury.
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Minor League Game Log
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Minor League Left/Right Batting Splits (AAA)
Since 2023
+1%
OPS vs LHP
2025
+31%
OPS vs LHP
| OPS | PA | HR | RBI | AVG | |
|---|---|---|---|---|---|
| Since 2023vs Left | .762 | 181 | 9 | 38 | .253 |
| Since 2023vs Right | .751 | 684 | 29 | 99 | .252 |
| 2025vs Left | .746 | 86 | 3 | 18 | .288 |
| 2025vs Right | .568 | 358 | 9 | 36 | .229 |
| 2024vs Left | .770 | 95 | 6 | 20 | .221 |
| 2024vs Right | .884 | 326 | 20 | 63 | .276 |
| 2023vs Left | 0 | 0 | 0 | 0 | 0 |
| 2023vs Right | 0 | 0 | 0 | 0 | 0 |
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Past Fantasy Outlooks
2025
2024
2023
Few big-league clubs would give De Los Santos a long look as a regular due to his flawed approach and poor defense, but the Marlins only have a few credible candidates to hit 20-plus home runs, so he's in the right place. In the lead up to the trade deadline, Miami dealt A.J. Puk to Arizona for De Los Santos and a lesser prospect (Andrew Pintar), so they accepted him as the headliner for a real player and must like him to some extent. De Los Santos has always had prodigious power relative to most of his peers, and he logged a strong 32.7 percent hard-hit rate and 40 homers in 137 games split between Double-A Amarillo (an extremely hitter-friendly home park) and Arizona and Miami's Triple-A affiliates, including 49 games for Reno in the Pacific Coast League. Bandboxes aside, 40 homers for any minor leaguer is an impressive total. However, De Los Santos is a free swinger (108:22 K:BB at Triple-A), and he slashed .240/.284/.459 with a 28.4 percent strikeout rate and 5.2 percent walk rate after getting dealt out of the PCL and into the still favorable, but less cartoonish, International League. De Los Santos will get to play regularly at first base or designated hitter, and he should provide more power and a worse batting average and on-base percentage than most rookies.
More Fantasy News
Optioned to Jacksonville
The Marlins optioned De Los Santos to Triple-A Jacksonville on Saturday, Isaac Azout of FishOnFirst.com reports.
Analysis
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May begin season at Triple-A
De Los Santos seems likely to begin the season with Triple-A Jacksonville, Barry Jackson of the Miami Herald reports.
Analysis
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Given 40-man roster spot
The Marlins selected De Los Santos' contract from Triple-A Jacksonville on Tuesday, Christina De Nicola of MLB.com reports.
Analysis
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Sent to Miami
The Marlins acquired De Los Santos and infielder Andrew Pintar from the Diamondbacks on Thursday in exchange for left-hander A.J. Puk, Jeff Passan of ESPN.com reports.
Analysis
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Strong start at Amarillo
De Los Santos was named the Texas League Player of the Month for April after leading the circuit with 32 hits, seven home runs and 58 total bases for Double-Amarillo, Alex Weiner of Arizona Sports reports.
Analysis
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Latest Fantasy Rumors
Promotion on horizon?
Diamondbacks GM Mike Hazen said Wednesday that he'll be "looking for opportunities" to call up De Los Santos if his "defense comes along," reports Alex Weiner of ArizonaSports.com.
Analysis
The 21-year-old was selected by Cleveland in the Rule 5 Draft during the offseason but was returned to Arizona at the end of spring training. De Los Santos began the campaign with Double-A Amarillo and posted a 1.122 OPS in 38 contests before being promoted to Triple-A Reno. He has continued to hit well for Reno with 12 homers and a .296/.339/.611 slash line in 41 games, but his poor defense remains a point of concern. The Diamondbacks don't have a clear opening at designated hitter with Joc Pederson still hitting well against right-handed pitching, and De Los Santos may have trouble forcing his way onto the big-league roster as a bench piece that's a defensive liability.
The 21-year-old was selected by Cleveland in the Rule 5 Draft during the offseason but was returned to Arizona at the end of spring training. De Los Santos began the campaign with Double-A Amarillo and posted a 1.122 OPS in 38 contests before being promoted to Triple-A Reno. He has continued to hit well for Reno with 12 homers and a .296/.339/.611 slash line in 41 games, but his poor defense remains a point of concern. The Diamondbacks don't have a clear opening at designated hitter with Joc Pederson still hitting well against right-handed pitching, and De Los Santos may have trouble forcing his way onto the big-league roster as a bench piece that's a defensive liability.