Seattle Mariners: Breaking News, Rumors & Highlights

The Mariners have made it clear; they don't want to trade any of their starters

The Seattle Mariners have two big holes to fill heading into 2026, in terms of their infield and their lineup. Second baseman Jorge Polanco signed a two-year contract with the New York Mets, and talks with free agent third baseman Eugenio Suarez have stalled.

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The Mariners face a new contender in the Brendan Donovan sweepstakes

The Seattle Mariners' courtship of Cardinals infielder Brendan Donovan has been well documented throughout the season. Nearly every day, fans in the Emerald City wake up, expecting a trade to happen soon --- perhaps even that day.

Seattle Mariners News / MLB Trade Rumors / December 29

Mariners Reluctant To Deal From Major League Roster

The Mariners are still hoping to make at least one more notable splash between now and Opening Day, but Ryan Divish of the Seattle Times suggests that they’re reluctant to deal anyone from their big league roster to make it happen.

Carlos Vargas News / Lookout Landing / December 29

40 in 40: Carlos Vargas, tough stuff

Carlos Vargas probably isn’t the worst reliever in baseball. Vargas threw 77 innings for the Mariners in 2025. It was eighth most by any reliever in MLB.

Kyle Schwarber News / Yardbarker Quizzes

The 'Active MLB home run leaders' quiz

How many of the most prolific power hitters in baseball today can you name in 5 minutes?

The 'Last 40-home-run season by MLB team' quiz

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Seattle Mariners News / Seattle Mariners on SI / December 29

ESPN's Buster Olney says Seattle has faith in Cole Young at second base

While the Mariners have been scrambling to set up their infield, one young player is highly thought of in the organization and considered to be the second baseman of the future.

Athletics News / Yardbarker

25 MLB players on the brink of stardom in 2026

The stars were out in full force during the 2025 World Series. From Max Scherzer in Toronto to Freddie Freeman, Mookie Betts, and of course, Shohei Ohtani, in Los Angeles, there was no shortage of the game's best under the brightest lights.

Phillies star 1B Bryce Harper takes a swipe at president Dave Dombrowski

Mets' continued pursuit of Bo Bichette, Alex Bregman faces one major obstacle

LF Tyler Soderstrom agrees to record contract extension with Athletics

25 MLB stars you probably didn't realize began their career with another team

The worst MLB teams from the 2000s

MLB News / Fastball on SI / December 29

Mariners Lose 27-Year-Old Southpaw To Phillies In Free Agency

Sometimes, the offseason carousel spins too quickly to catch all the transactions in the moment, especially at the minor-league level. It's been a winter of heavy turnover for the Seattle Mariners, who saw 29 players elect minor-league free agency in November.

Seattle Mariners News / Fastball on SI / December 29

Mariners Could Reunite With Eugenio Suárez Under One Condition: Insider

The Seattle Mariners have had a lot less buzz than a casual observer might expect in regards to a new contract for third baseman Eugenio Suárez. Suárez, the two-time All-Star, hit 49 home runs this year, by far the most of any remaining free agent.

Eugenio Suarez News / Seattle Mariners on SI / December 29

MLB Writer says the Mariners will sign Japanese Superstar to replace Eugenio Suarez

With Eugenio Suárez sitting in free agency limbo, the Mariners need to make a move to find a successor. While their own veteran free agent seems like the club's best option, Seattle president Jerry Dipoto and general manager Justin Hollander have basically been sitting on their hands, waiting for Suarez to put pen to paper.

Seattle Mariners News / Fastball on SI / December 28

Is A Eugenio Suárez Reunion The Right Move For The Mariners?

The Seattle Mariners have had a mixed bag of an offseason thus far. While they were able to keep Josh Naylor for the next five years, they lost Jorge Polanco to the New York Mets.

Eugenio Suarez News / Seattle Mariners on SI / December 27

Would Eugenio Suarez REALLY shun Seattle for Pittsburgh?

In recent weeks, there have been multiple reports and several stories linking Mariners free agent Eugenio Suárez to the Pittsburgh Pirates, with several sources suggesting he could be playing in the Steel City in 2026.

Seattle Mariners News / Fastball on SI / December 27

Mariners All-Star Lands On Expert's List Of Top 10 Free Agents

It's awfully rare for a player to hit 49 home runs in a season and receive as little free-agent buzz as Eugenio Suárez is right now. Suárez's second stint with the Seattle Mariners seems to have tanked his value, even though he had a monster two-homer game in the American League Championship Series.

MLB News / Yardbarker

The 25 greatest pitching seasons from the modern MLB era

America's favorite pastime has more memorable performances than any sport. As such, figuring out which pitchers had the best seasons ever is no easy task.

Seattle Mariners News / Seattle Mariners on SI / December 26

Mariners Minor League coach departs for MLB position

The Seattle system suffered a shock earlier this week when a prominent member of their Triple-A team decided to depart for the East Coast. Mariners utility player turned Tacoma Rainiers coach Shawn O’Malley is moving to the Washington Nationals, joining the MLB staff as an assistant hitting instructor.

Josh Naylor News / Seattle Mariners on SI / December 26

Since re-signing Josh Naylor, Mariners' front office has been put in a tough position

With three big free agents on their infield, the Seattle Mariners knew they would have to put in some serious work to hold on to key players in their infield.

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Seattle Mariners News / Fastball on SI / December 26

Mariners Could Target Former All-Star As Potential Offensive Upgrade

The Seattle Mariners have had a mixed bag of an offseason thus far. They managed to keep Josh Naylor around for the next five years, but also lost Jorge Polanco to the New York Mets.

Colt Emerson News / Fastball on SI / December 26

Where Mariners Stand On Trading For Star Infielder, Calling Up Colt Emerson

The Seattle Mariners have some interesting long-term decisions to make when building this year's roster. After missing out on re-signing Jorge Polanco, who jumped to the New York Mets in free agency, the Mariners have been closely tied to a pair of big-name trade candidates: St.

Seattle Mariners News / Fastball on SI / December 26