Every fantasy baseball team needs to be well-stocked with multiple options in the outfield, but since the position is usually so deep, it’s a spot some fantasy baseball managers wait on until late in their draft. Whether you’re looking to build depth after snagging stars or relying on late-round fantasy baseball sleepers to fill your entire outfield spot, there are some great options to consider after the big names are off the board.
To cover this extremely important position more in depth, we split the spring training fantasy baseball sleepers into three from the American League and three from the National League. In this post, we’ll focus on three strong fantasy baseball sleepers in the outfield from the National League. These are options that I think will out-produce their current affordable ADP (average draft position).
Whether you prefer season-long leagues, DFS contests or DraftKings Best Ball, DK Network will have you covered throughout the upcoming season. I began this series with fantasy baseball sleepers at catcher, first base, second base, shortstop, third base and the outfield in the American League. In this post, we’ll look at my top three OF sleepers from the National League coming into spring training.
Jakob Marsee, Miami Marlins
Marsee is going just outside the top 30 outfielders in mixed leagues, but he brings a ton of upside if he can build on a strong campaign at the top o the Marlins batting order. Miami acquired Marsee from the Padres as part of the package in exchange for Luis Arraez in May of 2024. Marsee split 2024 between Double-A and Triple-A, hitting .200 with 10 homers and 51 stolen bases. He hit .275 in Triple-A, though, showing he had the potential for more than just speed.
In 2025, he hit a solid .246 in Triple-A with 14 homers, 47 stolen bases and a .372 wOBA. He made his MLB debut on August 1, and went 13-for-29 (.448) in his first 10 MLB contests with one home run and five stolen bases.
While he didn’t keep up that torrid pace all season long, he did hit .292 with five homers, 14 stolen bases, and a .363 wOBA in 55 MLB contests. He moved to the top part of the lineup in September and hit in one of the top three spots in the order in 24 of his 25 games in the final month of the season.
Marsee has excellent speed and power potential, and he will likely bat second after Xavier Edwards and right in front of Agustin Ramirez and Kyle Stowers in most of Miami’s lineups this season, and he could emerge as a dual-threat star if Miami’s young offense continues to grow.
Even if he regresses a little bit, as the metrics indicate is likely, his stolen base potential is enough to keep him worth considering after the top 30 are off the board.
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Harrison Bader, San Francisco Giants
Bader was a free agent this offseason for the third straight season, and the 31-year-old landed with his seventh team since 2022. He played for the Cardinals, Yankees, Reds, Mets, Twins and Phillies over that span brining his high-enery style and excellente defense to each stop along the way.
He signed a two-year deal with the Giants and will be the team’s primary center-fielder, hopefully helping San Francisco’s below-average outfield defense. His ADP has him going off the board after 70 outfielders have been selected, so he can be a later-round target as one of the fantasy baseball sleepers who can round out your roster.
Bader’s hard-nosed, high-energy style made him a fan favorite in Philly, and over this 50 games with the team he hit .305 with 11 doubles, five homers, a .358 wOBA and a hard-hit rate over 40%. He had the best offensive season of his career last year between the Twins and Phillies, setting career highs in plate appearances (501), home runs (17), OPS (.796) and OPS+ (117).
With the Phillies, Bader had just one stolen base but has double-digit steals in four straight years, with a high of 20 stolen bases in 2023. The Giants don’t typically run that much, but he could bring an added element to the lineup if he is aggressive on the basepaths.
Bader brings enough stolen base and home run potential to be an interesting fit in a lineup that has some legitimate power threats with low averages. Where he fits in the batting order will be key, but in the right position, he should be able to outperform his draft position in his first season by the Bay.
Carson Benge, New York Mets
The Mets are hoping that their No. 2 prospect, Carson Benge, is ready to start the season in one of their outfield spots. MLB Pipeline ranked Benge as the No. 16 prospect in baseball.
The left-handed hitting outfielder was the team’s first-round pick in 2024 and quickly climbed all the way to Triple-A last season. He finished the year with a .281/.385/.472 slash line across three levels, adding 15 homers and 22 steals in 116 games.
He doesn’t have one stand-out skill, but could be above-average in just about every category once he settles into the majors. He’ll need to earn his spot with a big spring or a fast spot in the minors, but if he ends up holding down a regular spot in a productive lineup, he could be a 20-homer, 20-stolen base threat with strong peripheral counting stats as well.
He has never had much of a strikeout issue, so his transition to the majors shouldn’t be too dramatic. Keep an eye on him as one of the fantasy baseball sleepers to monitor this spring, and if he earns a starting job, you can snag him late in your drafts. He’s about the 90th outfielder off draft boards in mixed leagues, but he can be a great late-round flier worth holding on to, depending on how your league allows for stashing minor leaguers.
