Projecting the major league ETA for Mariners' minor league MVP Felnin Celesten

This has been a great bounce-back year for Felnin Celesten. He has been a highly-ranked prospect since he signed as an international free agent in 2023, but after posting an underwhelming 108 wRC+ in his first season in Single-A, his place on prospect lists quickly tumbled.

His second full professional season was much better, resulting in a slash line of .314/.409/.534 across 364 plate appearances for High-A Everett. This 137 wRC+ allowed him to return to MLB's list of Top 100 prospects where he now sits at No. 47. He was recently named as MVP of the Northwest League and with his career back on track, it's not too soon to start wondering when he'll join his fellow top prospects in the big leagues.

Felnin Celesten could be called up to the majors within two years

The Mariners have spent the last stretch of the regular season calling up top prospects such as Kade Anderson, Lázaro Montes, and Michael Arroyo. It won't be nearly enough to save their playoff chances, but with the remaining games otherwise meaningless, it seems productive to give the future stars of the franchise a chance at some big league reps.

This gives a little insight as to what the organization is looking for when deciding who to call up. For pitching prospects, promotions directly from Double-A are common. For position players, at least short stints in Triple-A are preferred. Colt Emerson spent the first 38 games of his season in Triple-A and although he hit to just a 104 wRC+, it was enough for him to get the call. Similarly, Arroyo posted a wRC+ of just 110 in Triple-A before being promoted.

Celesten will more than likely start next year in Double-A. He has been with the Arkansas Travelers since late July and he clearly has some work to do. He has just a 44 wRC+ across 134 plate appearances with a 33.6% strikeout rate. It may take him some time to really get his bearings in Double-A but since he's still just 21 years old, there isn't a huge rush to push him onto Triple-A and subsequently the show.

One clear obstacle on his path is that the Mariners already have someone playing at his position. Seattle has already committed to Colt Emerson, but his disappointing rookie year could leave just enough room for Celesten to get a chance to fight for the spot on the roster.

With the impending labor stoppage and high probability of a reduced playing schedule, it's likely that Celesten will need to wait until at least 2028 to get his first crack at playing baseball at the highest level. At that point, the current young core should have enough experience to teach him the ropes and get him up to speed. Hopefully, he'll be joining the team in a better spot than it has been in 2026.

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