De Los Santos Crushes 406-Foot Homer in Triple-A Return After Brief MLB Debut

Deyvison De Los Santos, the 22-year-old Marlins corner-infield prospect ranked 28th in Miami's system by Fish On First entering 2026, needed exactly one game back at Triple-A Jacksonville to make clear that a front-office transaction, not a performance failure, sent him there. The right-handed slugger launched a 406-foot homer with 98 mph exit velocity in his first Jacksonville Jumbo Shrimp game after his MLB debut was cut to a single day.

The sequence that preceded the blast matters. De Los Santos debuted March 29, went 1-for-2 with a double against the Colorado Rockies, and was optioned back to Jacksonville the following morning to clear a roster spot for infielder Leo Jiménez, acquired from the Toronto Blue Jays. Christopher Morel's left oblique strain had triggered the original call-up on March 28; when the Marlins needed to fit Jiménez onto the roster, De Los Santos drew the short straw. His option year was not consumed by the quick recall, leaving the front office with full flexibility on when he returns.

The 406-foot shot is his second Jacksonville home run of 2026. On Triple-A Opening Day, he went 2-for-4 with a walk, a home run, and three RBI against the Rochester Red Wings. That early power production matters most as a counterpoint to 2025, when he slashed .241/.311/.363 with 12 home runs and 54 RBI in 107 games after a left quad strain cost him five weeks. The 2024 version, the one that produced a .263/.308/.520 line with 26 home runs, 83 RBI, a Pacific Coast League Top MLB Prospect Award, and All-MiLB Prospect First Team honors, is the one the Marlins are trying to recover.

The organizational work on his swing decisions and groundball rate did not surface clearly in the 2025 numbers. Whether those adjustments have taken hold is the central question of his 2026 season, and three specific indicators over the next several weeks will tell the fuller story. First, his exit velocity average across a full sample; a 98 mph peak means little if soft contact remains a recurring pattern. Second, his isolated power relative to his 2024 benchmark of roughly .257, the gap between his slugging and batting average that season. Third, his walk-to-strikeout ratio, which captures the plate discipline the Marlins emphasized after 2025. If all three trend toward his 2024 levels, the front office faces a difficult case for keeping him in Jacksonville with Morel's oblique status still uncertain and Jiménez still acclimating to a new organization.

De Los Santos was signed by the Arizona Diamondbacks for $200,000 out of Santo Domingo in July 2019, reached Double-A before turning 19, survived a Rule 5 Draft detour through Cleveland, and eventually landed in Miami's system. He bought his mother a house with his first MLB paycheck. The demotion after one day was not a setback he earned between the lines, and the 406-foot answer in his first swing back makes that case loudly.