One of my favorite parts of this hobby is diving into players that I think are currently undervalued.  While most sleeper prospects will never become future MLB MVP’s, I do believe there are certain skills that could make them highly valuable players in the future.  Sleeper prospects are the furthest thing from “locks” in the hobby but they are a good way to enjoy collecting with a smaller price tag. To avoid confusion, you can find a quick breakdown of my different rankings on my Resources Page.

10. YEREMY CABRERA - TEXAS RANGERS

Cabrera is a burner with a solid hit tool and a power dependent ceiling. He's not a physical kid but doesn't get cheated when he swings.  His upside right now is speed and defense in centerfield with the bat dragging a bit behind from a developmental standpoint. He should start the 2026 season in A+ which will give us a very good look at his offensive skillset against upper level stuff.  He was named the Texas Rangers Defensive player of the year in the MiLB and could mold into a speed & power type profile.  

9. SEAN KEYS - TORONTO BLUE JAYS

Keys is built like a brick crap house and has some of the best raw power in the system next to Charles McAdoo.  He hit 19 HR's this year in a full season of A+ but his hit tool took a massive hit transitioning from Low A to A+.  He's got no defensive upside and has already started getting the majority of his reps at 1B.  With limited defensive ceiling, the bat will have to continue to improve and that won't be easy in AA next year (NH is very cold early in the season). I really like the idea of big power with solid underlying data (GB/FB, SwStr%, BB%). 

8. YOPHERY RODRIGUEZ - BOSTON RED SOX (MIL ON CHECKLIST)

Rodriguez was one of the youngest players to complete a full season in A+ in 2025. His underlying data (K%, SwStr%, and GB/FB) is really good but the production hasn't caught up yet.  This could be due in part to back to back aggressive assignments in both 2024 and 2025.  He looks to have more gap to gap power right now with a power dependent ceiling (which could improve as his age/level close distance). He got the majority of his reps in left field this year in A+ so the bat will face increased pressure.

7. RICHARD MACTIC - NEW YORK YANKEES

Mactic made significant improvements from 2024 to 2025 in the DSL.  He will be a player to keep an eye on when he comes stateside in 2026 - especially playing on a huge market team such as the Yankees.  Keep in mind how often DSL achievers struggle tremendously once reaching Low A. 

6.WALKER JANEK - HOUSTON ASTROS

Janek is a top tier defender behind the plate and the top ranked catcher in the Astros farm system.  He was solid in A+ this year but demonstrated some contact risk with limited walks and high K data.  Another knock on Janek is his age, having already celebrated his 23rd birthday this season. We should get a good look at how his bat handles AA arms in 2026. If he can continue to improve his power numbers, he could gain more attention in the hobby.