Seattle Mariners: Breaking News, Rumors & Highlights

Seattle Mariners designate veteran relief pitcher for assignment

The Seattle Mariners have somewhat surprisingly designated reliever Jackson Kowar for assignment on Tuesday. The move was made to clear a spot on the 40-man roster for newly-acquired catcher Jhonny Peredes.

Features

The Morning Bark

The Quiz of the Day

Seattle Mariners trade for Jhonny Pereda to add to their catching depth

The Seattle Mariners have acquired 29-year-old catcher Jhonny Pereda from the Minnesota Twins for cash considerations. The veteran is expected to provide depth behind the dish at the minor league level, with an opportunity to contribute to the big club in 2026.

Seattle Mariners News / Fastball on SI / January 28

Eugenio Suárez’s Potential Impact on AL West Race in 2026

Eugenio Suarez is one of the top remaining free agents still available after a strong 2025 season. He hit 49 home runs with the Arizona Diamondbacks and Seattle Mariners, and even helped Seattle get to the ALCS for the first time since 2001.

Eugenio Suarez News / Total Pro Sports / January 28

MLB Insider Shares Latest Intel On Eugenio Suarez-Mariners Situation

Eugenio Suarez is probably the biggest free agent slugger available in the free agent market right now. Suarez is waiting for a team, and rumors are suggesting the Pittsburgh Pirates and Boston Red Sox as the front-runners.

Jose Ramirez News / Yardbarker Quizzes

The 'MLB active doubles leaders' quiz

How many of the active MLB players with 300 or more doubles in their career can you name in five minutes?

The '2025 MLB hits leaders' quiz

The 'Cleveland's 1997 World Series roster' quiz

The 'Most multi-HR games by MLB team' quiz

Miguel Andujar News / Seattle Mariners on SI / January 27

Should the Seattle Mariners target free agent Miguel Andujar?

In what has been an ongoing saga during this offseason, the Seattle Mariners continue their search for at least one more veteran bat for their infield.

MLB News / Yardbarker

The 20 most significant MLB Rule 5 draftees

The Rule 5 draft, held annually at the winter meetings in December, never garners much fanfare, but it has been known to yield some noteworthy transactions.

Eugenio Suarez News / Larry Brown Sports / January 27

Eugenio Suarez linked to 3 teams in MLB free agency

The MLB free agency period has started to cool down ever since Kyle Tucker and Bo Bichette signed their new deals. However, one big bat available is third baseman Eugenio Suarez.

Jackson Kowar News / MLB Trade Rumors / January 27

Mariners Designate Jackson Kowar For Assignment

The Mariners announced they’ve designated reliever Jackson Kowar for assignment. That opens a 40-man roster spot for catcher Jhonny Pereda, whom they acquired from the Twins in exchange for cash considerations.

Seattle Mariners News / Lookout Landing / January 27

Rick Rizzs, the Voice of the Mariners, will retire after the 2026 season

Rick Rizzs has announced through the Seattle Mariners that the 2026 season will be his final one as the radio voice of baseball in the Pacific Northwest, retiring following this year’s campaign.

Josh Naylor News / Lookout Landing / January 27

40 in 40: Josh Naylor is fearless

Here’s the location of a 99 mile per hour fastball. I wouldn’t advise swinging at this pitch. In the Statcast era, there have been 2,416 pitches thrown at least that fast in this part of the plate.

MLB News / Fastball on SI / January 26

Mariners Lose Backstop to Astros in Free Agency After 8-Year Stint

The Seattle Mariners and Houston Astros are beginning to form a fierce rivalry at the major league level. After seizing control of the American League West in 2025, the Mariners are looking to put their foot on the gas pedal and claim the division as their own for the long haul.

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.

MLB News / Seattle Mariners on SI / January 25

The Mariners need to steer their ship away from Brendan Donovan (for now)

The Seattle Mariners have had an exhaustive offseason, as they continue to try to fill holes at second and third base. In these weeks of searching, one name kept coming up as a top trade priority: St.

Seattle Mariners News / Seattle Mariners on SI / January 25

The Seattle Mariners reportedly sign international star Mairon De La Rosa

After receiving an initial offer from the Big Apple, Dominican prospect Mairon De La Rosa is choosing the Pacific Northwest, and he will sign with the Seattle Mariners, pending approval of the deal by Major League Baseball.

Click here to get Yardbarker's Quiz of the Day emailed to you!

The 'Youngest Conference Champ QBs' quiz

The 'MLB active doubles leaders' quiz

The 'NFL undrafted receiving leaders' quiz

The 'NFL tight end receiving leaders' quiz

Samad Taylor News / Fastball on SI / January 25

Padres Sign 27-Year-Old Speedster After Mariners Departure

The Seattle Mariners' recent roster management left infielder Samad Taylor without a job. Taylor played most of the last two seasons with Triple-A Tacoma, but he did play seven games on the major league roster.

Seattle Mariners News / Fastball on SI / January 25

Eugenio Suárez Linked to AL East Contender as Potential Landing Spot

The Seattle Mariners have had a relatively quiet winter, with their only major move being the signing of Josh Naylor, who returned on a five-year, $92.5 million contract.

Tai Peete News / Seattle Mariners on SI / January 25

20-year-old infielder Tai Peete is showing promise in the Seattle system

For the Seattle Mariners, it's a nice luxury to have a player like Tai Peete around. The 20-year-old shortstop and second baseman has been rapidly rising in the M's minor league ranks, and he's developing into the kind of threat that could benefit the big club.

Gabe Mosser News / Seattle Mariners on SI / January 25

Mariners sign Phillies minor league free agent Gabe Mosser

Earlier this month, the Seattle Mariners signed 29-year-old right-handed pitcher Gabe Mosser, who had previously pitched for the Philadelphia Phillies organization.

Seattle Mariners News / Seattle Mariners on SI / January 24

Mariners analyst Jon Morosi talks about Julio Rodriguez's outlook for 2026

During this offseason, MLB.com released some early outlooks for the upcoming season. In the course of their prognostications, they selected Seattle Mariners centerfielder Julio Rodriguez as the favorite to with the 2026 American League Most Valuable Player Award.

MLB News / Seattle Mariners on SI / January 24

MLB Analyst predicts the Mariners will trade for New York Mets infielder

The search continues in Seattle, where the team is still looking to add at least one top-flight infielder to the 2026 mix. While things have stalled severely (especially talks with the St.

MLB News / MLB Trade Rumors / January 24

Padres Sign Samad Taylor To Minors Contract

The Padres have signed infielder Samad Taylor to a minor-league deal with an invitation to Spring Training, according to Chris Cotillo of MassLive. Taylor was designated for assignment by the Mariners last week and elected free agency prior to signing this new deal.

Cal Raleigh News / MLB on ClutchPoints / January 23

Analyst calls out Mariners star Cal Raleigh’s placement in top player rankings

With the Seattle Mariners preparing for Spring Training, the team is looking for another season of greatness from catcher Cal Raleigh, who is coming off a historic season.

Seattle Mariners News / MLB Trade Rumors / January 23

Samad Taylor Elects Free Agency

The Mariners announced that infielder/outfielder Samad Taylor has cleared outright waivers and elected free agency. He was designated for assignment last week when Seattle acquired right-hander Yosver Zulueta.

Julio Rodriguez News / Athlon Sports / January 22

MLB Makes Julio Rodriguez Announcement

The Seattle Mariners took a major step forward as a franchise in 2025, coming just one win short of their first-ever World Series appearance. Although the season ended in heartbreak, optimism remains high in Seattle, with the club’s core locked into team-friendly deals that provide stability for years to come.