Few prospects in baseball showed the power that Lazaro Montes brought in 2026. He was the only Mariners prospect to reach at least 30 HR, nearly hitting 40 with 38. He’d hit four after making his MLB debut, for a total of 42 on the year. While there’s still swing-and-miss concerns that likely won’t go away, the raw power that Montes has can allow him to be an easy 40-HR bat for years to come, and we finally got a taste of that in the Majors this season.

San Francisco Giants MiLB Team Of The Year is out now on my Substack. Features: - Josuar Gonzalez - Jhonny Level - Bo Davidson + More free to read below.👇👇 tobeyschulman.substack.com/p…

Michael Arroyo would make his MLB debut this season after a solid year in the upper levels of MiLB. He was the only Mariners prospect this year to hit 15 or more HR while keeping their K% under 17%. Arroyo offers a fun profile, one that swings often and has the bat-to-ball skills to generate consistent contact from it. He swung 54% of the time in Double/Triple-A, and posted an 81.9% Contact% and .283 batting average.

Felnin Celesten was one of just five Mariners prospects to hit at least 15 HR while stealing 25 bases. Out of those five, he was the youngest to meet that criteria at just 20 years old at the time. It was a career year for Celesten, as before 2026, he never hit more than six home runs in a single season. While his K% raised upon a promotion to Double-A, the switch-hitter was one of the most exciting prospects in Seattle’s system this year.

Seattle Mariners MiLB Team Of The Year is out now on my Substack. Features: - Kade Anderson - Lazaro Montes - Felnin Celesten + More free to read below.👇👇 tobeyschulman.substack.com/p…