Mid-Round Third Base (3B) Fantasy Baseball Draft Values And Targets In 2025

Third base fantasy baseball sleepers, targets to draft in the mid rounds. Potential 2025 fantasy baseball sleepers and undervalued 3B to target in drafts.

Welcome back, RotoBallers, to our third base fantasy baseball draft values and targets for 2025 fantasy baseball drafts. This article is part of our series of mid-round targets to help you crush your draft and ultimately win your league. We are publishing a series of articles reviewing each position and providing mid-round picks that could help bolster your roster. Today, we focus on the hot corner. Third base has a few elite options in Jose Ramirez and Vladimir Guerrero Jr., but the position is filled with upside and emerging prospects to take a chance on.

Below are some middle-round third base options for you to consider drafting in your season-long leagues this season. Are their ADPs undervalued? Will they make significant fantasy contributions and become a priority mid-round draft target? Read on to see our take.

Our editors have hand-picked these specific MLB players for your draft prep enjoyment. Usually only available to Premium subscribers, the five outlooks below are meant to give you a taste of the in-depth analysis you receive with our industry-leading 2025 Draft Kit. Be sure to subscribe today to start reading all of our in-depth 2025 player outlooks and many other premium articles and tools, including Team Sync, the Live Draft Sync assistant, Custom Rankings Service, and so much more – available exclusively in our 2025 Draft Kit.

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Junior Caminero, Tampa Bay Rays

Tampa Bay Rays third baseman Junior Caminero will open the season as the team's starting third baseman. After rocketing up the prospect ranks all the way to No. 1 overall and teasing fantasy managers with two short MLB cameos, we finally get to see a season's worth of what the youngster has to offer.

The calling card is prodigious power, blasting 31 home runs in 460 at-bats across two levels of the minors as a 19-year-old in 2023, then another 16 last season in only 234 at-bats as a 20-year-old before his call-up. The Dominican slugged .424 with six home runs in the majors in 165 at-bats at the end of the 2024 season, registering an 11.8% Barrel% and lacing a ball with a 116.3 exit velocity, which was one of the 15 hardest-hit balls all year.

Junior Caminero is absolutely dismantling the ball in LIDOM.

22 games: .452/.489/.702, 15 XBH, 6 BB, 3 K

Swings and misses: 18
Batted Balls 105+ MPH: 18 pic.twitter.com/xBAU2BL5gU

— Aram Leighton (@AramLeighton8) January 17, 2025

With a full season of at-bats, the 21-year-old should approach 30 home runs, and hitting in the top of the Rays' lineup will afford plenty of RBI opportunities. The right-handed hitter is currently ranked at 86 overall at RotoBaller, slightly ahead of his NFBC ADP of 92.43, but possesses the talent to finish well ahead of that.

-- Jarod Rupp - RotoBaller

Alex Bregman, Boston Red Sox

Free agent infielder Alex Bregman signed a three-year, $120 million contract with the Boston Red Sox just before the official start of spring training. Bregman had one of the worst seasons in his career, slashing .260/.315/.453 with 26 home runs, 75 RBI, 79 runs, and three stolen bases over 634 plate appearances in 2024.

The 30-year-old saw a decline in BB% from 12.7% in 2023 to 6.9% in 2024, while his K% increased from 12.0% to 13.6%. The good news is that his hard-hit percentage did increase from 38.5% in 2023 to 40.5% in 2024.

Alex Bregman at Fenway...

98 PA, .375/.490/.750, 9 2B, 7 HR, 16.3% BB, 17.3% K

Overall for #FantasyBaseball, I think this is a neutral move for his value which is a positive overall as most other parks would be a downgrade for Bregman leaving Houston. pic.twitter.com/FjZH4n5YE7

— Eric Cross (@EricCrossMLB) February 13, 2025

Bregman's bat should fit right in at hitter-friendly Fenway Park, where he is projected to hit second between Jarren Duran and Rafael Devers. Fenway Park is a great fit for Bregman, evidenced by the fact that he hit .375 (30-for-80) with seven home runs, 15 RBI, and a 1.240 OPS in 21 games there. He will add second base to his eligibility as Bregman is expected to handle the keystone for the Red Sox this season.

Cutter projects Bregman to slash .266/.345/.459 with 25 home runs, 80 RBI, 85 runs, and three stolen bases. The move to Boston increases Bregman's value, and expect his current NFBC ADP of 136 to rise.

-- Brad Camara - RotoBaller

Mark Vientos, New York Mets

New York Mets third baseman Mark Vientos burst onto the fantasy radar in 2024, slashing .266/.322/.516 with 27 homers in 454 PAs. He wasn't quite that good per Statcast's expected metrics, which pegged him for a .248 average and .475 slugging percentage. That means we should expect regression from his .324 BABIP and 26.5% HR/FB, but "regress" doesn't mean "useless."

The 25-year-old has light tower power with his 113.2 mph max exit velocity, 96 mph average airborne exit velocity, and 14.1% rate of Brls/BBE, all well above league average. His 21.6% Pull% should help his HR/FB as well, with even more homers if he can improve his 36% FB%.

Vientos is also expected to hit third in the Mets lineup, giving him bountiful RBI opportunities behind Francisco Lindor and Juan Soto. There are tons of swing-and-misses here, as evidenced by Vientos's 29.7% K% and 15.9% SwStr%, but fantasy managers can overlook that for premium power production.

Vientos should produce at a 30 HR pace with a .250ish average in the heart of the Mets lineup, making him a good choice at his NFBC ADP of 90.48.

-- Rick Lucks - RotoBaller

Royce Lewis, Minnesota Twins

Minnesota Twins third baseman Royce Lewis hit .233 with 16 home runs, 47 RBI, 40 runs, and zero stolen bases. Health remains the greatest obstacle for Lewis in his career; the talent is clear when he is available to play. Leg injuries continue to rob Lewis of playing time for the Minnesota Twins.

With a current NFBC ADP of 114, Lewis is being selected by fantasy players at the beginning of the eighth round, which feels like a steep price for a player who has never had more than 325 plate appearances in a major league season. However, should his availability to play meet with his incredible skills, there is a 30-home run upside here.

Lewis is still only 25 and could turn into a terrific and useful player. Caveat emptor: have a contingency plan in place should Lewis miss time with injury in 2025. However, if you are the type of player who is willing to tolerate what seems like a substantial risk, Lewis could pay huge dividends for you in 2025. Good luck!

-- Mike Carter - RotoBaller

Eugenio Suarez, Arizona Diamondbacks

Arizona Diamondbacks third baseman Eugenio Suarez was dreadful in the first half last season, slashing .216/.302/.366 with 10 HR. He was outstanding in the second, hitting .307/.341/.602 with 20 HR. It added up to a .256/.319/.469 triple-slash line with 30 HR over 640 PAs.

Suarez's 26.8% chase rate and 12.8% SwStr% don't support his 27.5% K%, but he has struck out more often than expected throughout his career. Suarez was more aggressive in the second half, seeing substantial declines in his K% (25.6% vs. 28.9%) and BB% (5.1% vs. 9.5%).

Eugenio Suarez is a great ADP value around pick 180 and a great trade target in dynasty for contending teams.

Surarez ranks 6th in HR and 6th in RBI since 2018 OD.
Last 7 Full Seasons average: 80 R, 32 HR, 93 RBI#FantasyBaseball pic.twitter.com/n1hkwCyBVI

— Eric Cross (@EricCrossMLB) February 17, 2025

Unfortunately, he'll still be a batting average risk since his 43.6% FB% and 10.2% IFFB% exert downward pressure on his BABIP. Suarez's .309 BABIP last season was rooted in a 23.6% LD%, a notoriously fickle stat bound to regress.

Suarez's Statcast power indicators are middling (93.3 mph average airborne exit velocity, 111.4 mph max exit velocity, 11.3% Brls/BBE), so he needs the fly ball volume to hit for power. He's also projected to hit sixth for Arizona, a lineup role offering few counting stat opportunities. Still, Suarez's 169.31 ADP is cheap for a proven 30-HR bat.

-- Rick Lucks - RotoBaller

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