Seattle Mariners' Offseason: Roster Needs and Potential Moves (2026)

Are the Seattle Mariners poised for a breakthrough, or will they remain stuck in neutral? The off-season is a high-stakes poker game, and the Mariners' next moves could determine their fate. They've made a few minor adjustments, like adding reliever Jose Ferrer, but the core questions about their roster remain unanswered. Let's dive into what we know, what we think we know, and what's still hanging in the balance as the Mariners navigate this crucial period.

Following the Winter Meetings, the Mariners' lineup has a familiar feel. While they've secured Jose Ferrer to bolster the bullpen (a move that could be a real game-changer, by the way – check out the details here: [https://sports.mynorthwest.com/mlb/seattle-mariners/jose-ferrer-seattle-mariners-special-bullpen/1831949]), they've also created a gap on the bench. So, what's the big picture?

Here's what we know: The Mariners are primarily looking to add one more bat to the lineup, focusing on an infielder rather than an outfielder. This strategy suggests they're comfortable with the potential of Victor Robles and Dom Canzone in right field, possibly viewing that position as one to upgrade later via trade. And this is the part most people miss... Considering their stable of promising young infielders vying for playing time (Cole Young, Colt Emerson and Ben Williamson), adding too many external bats could stifle their development. It’s a delicate balance between immediate improvement and fostering future talent.

They also know they need a reliable backup catcher. The organization's long-term outlook on Harry Ford as a catcher has been uncertain, and they've reportedly been open to trading him. While Ford could still prove to be a valuable asset behind the plate, the Mariners need a dependable option to spell Cal Raleigh, who frequently serves as the designated hitter. Relying solely on Ford would place undue pressure on the young infielders. Think of it as a pressure-cooker situation - too many rookies at once can lead to errors and stunted growth.

Furthermore, the Mariners remain interested in free agent Jorge Polanco… but only at the right price. This makes perfect sense, considering Polanco's proven track record. The Mariners' history with acquiring external bats has been inconsistent, so having concrete data on Polanco and his ability to perform at T-Mobile Park is a significant advantage. He fits the bill as a veteran who can play second base, DH, and switch hit. He's a known quantity in a sea of unknowns, and that has value. But here's where it gets controversial...

Now, let's move on to what we think.

The prevailing belief is that Polanco is seeking a three-year contract in the $45-50 million range, based on speculation from ESPN's Jeff Passan (https://www.youtube.com/watch?v=Pihcv67bpkQ). Given Polanco's age (32) and history of injuries, such a price tag might be too rich for the Mariners' blood. Would you gamble that much on a player with that kind of risk?

However, we also think that the Mariners have many alternative options if Polanco's demands are too high. The trade market is brimming with infield talent, from Ketel Marte and Brendan Donovan to Brandon Lowe, Jake Cronenworth, and Jeff McNeil. And let's not forget the potential availability of premier free agents like Bo Bichette and Alex Bregman (and even Eugenio Suárez!). This abundance of choices could drive down asking prices, benefiting teams seeking infield upgrades. It's all about supply and demand.

This situation creates a stalemate, where no one wants to make the first move. Players and sellers are holding firm on their perceived value, but the high supply of infielders is balancing out the demand. Could this lead to Polanco lowering his price and returning to Seattle? Recent rumors suggest the Pittsburgh Pirates are exploring a trade for Brandon Lowe, which would shrink Polanco's market and increase the likelihood of his return.

And this is the part most people miss... I also believe that if the Mariners have a chance to significantly improve their roster, they should seize it. Ketel Marte, more than any other option, presents that opportunity. He's a star-level player with a reasonable contract, especially compared to the potential cost of Polanco at $15 million per year.

But can the Mariners afford what the Arizona Diamondbacks are asking for Marte? (https://sports.mynorthwest.com/mlb/seattle-mariners/can-seattle-mariners-trade-arizona-diamondbacks-ketel-marte/1831784) Marte is owed $15 million in 2026 and $12 million in 2027, followed by a year at $20 million and two more at $22 million before a player option at just $11.5 million. A trade package could potentially start with Cole Young (whose value would decrease with Marte on the team) and one of their top minor league pitchers (Jurrangelo Cijntje, Ryan Sloan, or Kade Anderson). It would be a tough pill to swallow, but it could position the Mariners as serious World Series contenders in the coming years. What do you think? Is that too much to give up for a shot at the title?

So, what remains undetermined? In short, almost everything!

I still believe that Polanco is the keystone (https://sports.mynorthwest.com/mlb/seattle-mariners/seattle-mariners-offseason-jorge-polanco-pivot-piece/1829608). His decision will set the stage for the rest of the offseason. If he returns to Seattle, the Mariners can focus on finding a backup catcher (perhaps Mitch Garver or Jonah Heim?) and potentially another veteran reliever, while evaluating their young infielders and preparing for the trade deadline.

That scenario would constitute a successful offseason, retaining key free agents, strengthening the bullpen, providing opportunities for young talent, and maintaining flexibility for future acquisitions. But if Polanco departs, or the Mariners lose patience, they have numerous other options. Are they willing to sacrifice long-term assets for the immediate impact of Marte? Or do they prefer adding power with Lowe? Perhaps they're more interested in Donovan's contact skills? All three players would improve the team, potentially even more than Polanco, but would limit their ability to make moves at the trade deadline.

Ultimately, the Winter Meetings may be over, but the real excitement is just beginning. The Mariners' next moves will define their season, and the possibilities are endless. What do you think the Mariners should do? Should they gamble on Polanco, pursue Marte, or explore other options? Let your voice be heard in the comments below!

Here's some additional Seattle Mariners offseason coverage to keep you informed:

  • Mariners pick two, lose one in minor league phase of Rule 5 draft (https://sports.mynorthwest.com/mlb/seattle-mariners/seattle-mariners-pick-2-lose-1-minor-league-rule-5-draft/1831971)
  • The one move Passan says could make Mariners the AL favorites (https://sports.mynorthwest.com/mlb/seattle-mariners/seattle-mariners-jeff-passan-move-al-favorites/1831871)
  • Mariners’ Jerry Dipoto named Baseball America Executive of the Year (https://sports.mynorthwest.com/mlb/seattle-mariners/seattle-mariners-jerry-dipoto-baseball-america-executive-of-the-year/1831861)
  • A reunion with Mitch Garver now makes perfect sense for the M’s (https://sports.mynorthwest.com/mlb/seattle-mariners/seattle-mariners-mitch-garver-makes-perfect-sense/1831759)
  • Was Harry Ford trade the best return Seattle Mariners could get? (https://sports.mynorthwest.com/mlb/seattle-mariners/seattle-mariners-was-that-best-harry-ford-trade-return/1831736)

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Seattle Mariners' Offseason: Roster Needs and Potential Moves (2026)

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