Mariners Face Costly Offseason Decisions That Could Limit Roster Flexibility

The Seattle Mariners are heading into a pivotal offseason grappling with arbitration raises, roster decisions, and leadership changes amidst looming labor uncertainties.

The Seattle Mariners are heading into a busy offseason with arbitration front and center, and the list is a long one. Seattle has 15 arbitration-eligible players, which ranks fourth-most in the majors, and that group could drive a sizable chunk of the club’s payroll decisions before the roster freeze tied to the looming CBA deadline.

There’s already a lot on the Mariners’ plate. The current Collective Bargaining Agreement is set to expire Dec. 1, and a lockout is expected after that.

Dan Wilson has also said he will not return as the team’s manager in 2027, and Seattle still has coaching staff spots to sort out after several changes there. On top of all that, the Mariners have made at least one early roster move by claiming former Rockies and Reds utility player Michael Toglia off waivers.

Toglia hit 25 homers in 2024 with Colorado.

The arbitration cases give a clearer picture of where the money may go. Logan Gilbert leads the group at an estimated $15.4 million, followed by George Kirby at $9.8 million and Bryce Miller at $3.9 million.

Gilbert is projected to be the highest-paid player in arbitration and is coming off the second 200-strikeout season of his career. He’s also in his final year of arbitration before reaching free agency.

Seattle’s bullpen adds another layer to the bill. Gabe Speier is projected at $3.3 million, Matt Brash at $1.8 million, Eduard Bazardo at $1.5 million, Jose A. Ferrer at $1.6 million, Michael Rucker at $800,000, Cooper Criswell at $900,000 and Carlos Vargas at $800,000.

There are also a few position players in the mix. Patrick Wisdom, who can play first and third, is projected at $1.1 million.

Luke Raley is estimated at $3.1 million, while Dominic Canzone is projected at $3 million. Brendan Donovan, listed as an infielder/outfielder, is projected at $6.1 million.

Donovan’s case stands out for reasons beyond the number. He made his only All-Star team in 2025 with the St. Louis Cardinals, then played just 39 games this season with the Mariners because of three trips to the injured list - two for a left groin strain and one for a concussion.

Miller’s situation is worth watching, too. He did not reach an arbitration agreement with Seattle last offseason before eventually landing a deal with the club, and he remains under a conditional club option for 2027 worth $6.075 million, per Spotrac, with a $15,000 buyout clause.

In Other News...

Josh Naylor's Honest Mariners Take Puts Focus On What Still Lingers

Josh Naylors first weeks with the Mariners have already given the club a clearer sense of how he views the game, and his honesty comes through in the little things as much as the big ones. The conversation around the Division Series only sharpens that lens, because in a five-game format, an early hole can feel a lot deeper than it does over a longer playoff round, and every detail starts to matter when teams are trying to keep pace.

The Mariners have been looking at those margins closely, from the baserunning basics to the kind of plays that can swing a night, including the one involving Austin Wells against the Yankees. Naylors assessment also lands in a wider baseball conversation that keeps circling back to market perceptions, including the buzz around Munetaka Murakami, but for Seattle the lingering question is simpler and more immediate: whether the club can turn those small corrections into something sturdier before the postseason pressure rises again. [Read more 🡒]

Astros Offseason Could Open A Massive Door For The Mariners

Houstons abrupt playoff exit has only sharpened the sense that a familiar power structure in the American League West could be on the verge of shifting. Even after finishing 81-81, the Astros still won the division, but the season also underscored how much of the roster is built around an aging core and a wave of looming contract questions. For the Mariners, who finished 76-86, that matters because the gap between the two clubs looked smaller in stretches than the standings suggested.

Seattles path back into the race has long depended on more than just improving its own roster. It also depends on whether the teams ahead of it stay sturdy, and the Astros now face an offseason that could force some hard organizational choices. The Mariners had their moments against Houston this year, and if the divisions most established club starts to turn over key pieces, Seattle suddenly finds itself staring at a much more open lane than it had a month ago. [Read more 🡒]

Mariners Prospects Just Hit A Test That Could Change The Conversation

Jonny Farmelo and Felnin Celesten earned a move from High-A Everett to Double-A Arkansas after strong early performances, a promotion that usually signals a prospect is closing in on the next conversation around big-league value. For the Mariners, the jump mattered because both players had been drawing real attention inside the system, and each still sits among the organizations top-100 prospects even after the latest MLB Pipeline update.

The first taste of Double-A, though, has been less forgiving. Their rankings slid in the latest top 100 refresh as the level of pitching sharpened and the offense backed up, with more strikeouts and less production than they showed before the move. For Seattle, the question now is less about whether the talent is still there and more about how quickly Farmelo and Celesten can adjust to the test that often separates promising names from the ones who stay on track. [Read more 🡒]