Last Updated: June 17th, 2026 by Michael Schatz
Looking ahead to the 2025 MLB season, several players are positioned for potential breakout performances. From young prospects getting another shot to post-hype sleepers, these 10 players could make significant impacts on their teams and in fantasy baseball.
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Colt Keith: Tigers’ Infield Power Prospect Ready to Surge
After a somewhat disappointing rookie season with a 97 wRC+ and 13 home runs, Colt Keith is poised for a breakthrough. The 23-year-old Tigers prospect, who previously dominated the minors with a .306/.380/.552 slash line and 27 home runs, has moved to first base. This position change could help unlock his power potential while maintaining valuable multi-position eligibility at both corner and middle infield spots.
Jordan Walker: Cardinals’ Young Outfielder Looking to Rebound
Despite struggling with a 72 wRC+ last season, Jordan Walker’s potential remains intriguing. The 22-year-old former third baseman showed promise in 2023 with a 116 wRC+ in 465 plate appearances. While currently dealing with a minor knee issue, Walker’s youth and raw talent make him an attractive bounce-back candidate. His previous success, including a 151 wRC+ in Single-A at age 19, suggests significant upside.
Jo Adell: Angels’ Outfielder Ready to Unleash Power-Speed Combo
Jo Adell’s combination of power and speed makes him an intriguing breakout candidate. Despite batting average concerns, his 98th-percentile bat speed and 20 HR/15 SB performance in just 451 plate appearances last season showcase his potential. At age 25, Adell could be on the verge of a 30-30 season, making him an attractive fantasy option despite the strikeout concerns.
Andrew Vaughn: White Sox First Baseman’s Power Potential
Entering his age-26 season, Andrew Vaughn remains an intriguing power prospect. With consistent playing time and solid plate discipline (21.3 K%), he’s positioned for a breakout. Despite playing for a rebuilding White Sox team, Vaughn’s secure role and potential for 25+ home runs with a .260+ batting average make him an attractive target for fantasy managers looking for reliable production.
Jonathan Aranda: Rays’ Hidden Gem Ready to Shine
Jonathan Aranda’s impressive minor league performance (165 wRC+ in Triple-A) suggests he’s ready for regular MLB at-bats. The 26-year-old first baseman should benefit from the Rays’ move to Steinbrenner Field and could excel in a platoon role against right-handed pitching. His potential for consistent playing time and favorable park factors make him an interesting sleeper pick.
Bo Naylor: Guardians’ Catcher with Rare Speed-Power Combo
Despite struggling with a 74 wRC+ last season, Bo Naylor’s unique combination of power and speed makes him intriguing. His minor league track record includes a 20-20 season across Double-A and Triple-A in 2022. While playing time concerns exist, Naylor’s rare speed-power combination at the catcher position makes him worth monitoring, particularly in two-catcher leagues.
Heston Kjerstad: Orioles’ Slugger Seeking Opportunity
Heston Kjerstad’s impressive minor league performance (153 wRC+ with 16 homers in 280 plate appearances) suggests he’s ready for regular MLB action. With Tyler O’Neill injured and Cedric Mullins struggling against lefties, Kjerstad could find significant playing time. His power potential makes him an attractive option if he can secure regular at-bats in Baltimore’s lineup.
Nolan Gorman: Cardinals’ Power Hitter with Upside
Despite high strikeout rates, Nolan Gorman’s 98th-percentile barrel rate showcases his immense power potential. At just 24 years old, the Cardinals infielder could benefit from increased playing time, especially if Nolan Arenado is traded. His power upside and potential for regular at-bats make him an interesting target, particularly in deeper formats.
Coby Mayo: Orioles’ Power Prospect on the Rise
Despite initial MLB struggles, 23-year-old Coby Mayo’s minor league power display (25 homers in 406 plate appearances) suggests significant potential. While currently blocked by Jordan Westburg at third base, potential trades could open up playing time at first base or DH. Mayo represents an excellent stash in deeper leagues and could become a valuable mid-season addition.
Curtis Mead: Rays’ Versatile Infielder Poised for Impact
Curtis Mead’s impressive minor league performance (13 HR, 11 SB in 410 plate appearances) and strong spring training suggest he’s ready for regular MLB action. The 24-year-old could find playing time at second base, left field, or DH, especially with Brandon Lowe’s injury history. The Rays’ move to a more hitter-friendly park could further boost Mead’s offensive potential.