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8 Fantasy Baseball Sleepers (2025)

Fantasy baseball sleeper season is here. Entering 2025, the term “sleeper” can hardly be applied given all the information to be consumed. With that said, we will dive in and give you four names you can take right now at their average draft position (ADP) cost that will return value, plus four more deep sleepers. This is where people are sleeping and you can wake up and take advantage.

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Fantasy Baseball Sleepers

Tyler O’Neill (OF – BAL)

Tyler O’Neill just came off his second season hitting over 30 home runs. He did so in just 113 games. O’Neill’s power is never in question (career 14.4% barrel rate and 45.9% hard-hit rate) and Baltimore is moving the fences back in left field.

Between being in one of the better lineups in baseball and in what should be a better park in 2025, there is little reason not to take a shot based on his fantasy baseball ADP and where he is going in drafts. You might deal with injuries but he is one of the few hitters in baseball that could push for 40 home runs with health being the only real concern of holding him back.

Isaac Paredes (3B – HOU)

Isaac Paredes’ Statcast page is ugly. This is why you cannot always count on those sliders to tell the full story. It has become well-known he is an extreme pull-ball hitter. This approach is perfect for the Crawford boxes. This is likely a big reason why the Astros went out and acquired Paredes via trade.

You have a hitter in Parades who should hit in the top four of the order, pull everything in the air and produce solid power with good runs and RBI production in that lineup. The batting average might be in question, but I would not question much else. If you are targeting a sneaky power bat at the third base position, Paredes is your guy.

Drew Rasmussen (SP – TB)

As he moves up boards, the sleeper status fades away, but Drew Rasmussen is still within that territory for now. The Rays have been public about letting him be a starter entering 2025. He might be limited in terms of innings, but he will turn 30 years old this season, and there is little reason to hold him back much.

Rasmussen is coming off a season where he failed to pitch 30 innings but he is healthy and with a full offseason entering 2025. Given how good he was as a starter before missing most of 2024 and 2025 due to injury and recovery gives a lot of reason for optimism. His stats before the injury between 2023 and 2024:

  • 190.2 Innings
  • 2.78 ERA
  • 3.09 FIP
  • 3.45 xFIP
  • 3.68 SIERA
  • 17.1 K-BB%

I would not bank on many (if any) quality starts, but he could be a five-and-dive type and be a solid contributor in the roto format.

Kristian Campbell (2B – BOS)

One of the top prospects in this system, Kristian Campbell has little (arguably nothing) to prove at the MiLB level. If Trevor Story is back at shortstop there is very little in his way of starting at second base.

I am not sure Campbell will break camp but I also would not rule it out. He has the tools and has proven himself in the upper levels of the minors. With David Hamilton and Vaughn Grissom showing to be better off as bench depth this allows Campbell to slot in sooner rather than later.

Campbell’s stats across two levels (AA and AAA) in 2024:

  • 20 home runs
  • 24 stolen bases
  • 14.3% walk rate
  • 19.9% strikeout rate
  • .330/.439/.558 triple slash line
  • 46.2% hard-hit rate

The Red Sox would almost be doing him a disservice leaving him in the minors to start the year. Unless he struggles in spring training.

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Deeper League Sleepers

I like the outlook for the below four players. Most go later in drafts or might only be deeper league names.

Bubba Chandler (SP – PIT)

Jared Jones and Paul Skenes debuted and made sizable differences for fantasy managers last season. Bubba Chandler is the next name to know. He’s a top pitching prospect who could be in line to be this year’s difference-maker for the Pirates.

Jesus Luzardo (SP – PHI)

Jesus Luzardo is coming off a lost year due to injury. We are just one year removed from a very solid pitcher and he has moved to a much better team. Health concerns are still there but seeing a team going out and acquiring him does suggest he is at least healthy now. He is going later than you might expect and is worth a shot in most leagues, even beyond the deeper formats he goes in.

Thairo Estrada (2B – COL)

Signed to be the starting second baseman in Colorado, why not give Thairo Estrada a shot in deeper formats? Before the 2024 season, we have a solid track record of production. You can take worse shots than a guy who has had success in the past and gets a shot to play in Coors Field.

Kyle Manzardo (UTIL – CLE)

This is for deeper leagues. Kyle Manzardo has entered the post-hype sleeper territory. There is serious platoon risk but given the strong finish to the season and this team being thin on power and overall offensive production (which play into his favor for playing time) there is little reason not to take a shot on him.

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