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