Seattle Mariners: Breaking News, Rumors & Highlights

What to Look for in This Mariners 2026 Season

The Seattle Mariners are coming off a historic 2025 season. Making it further into the postseason than ever before since becoming a franchise in 1977. They were only eight outs away in Game Seven from a World Series appearance.

Features

The Morning Bark

The Quiz of the Day

The Mariners’ Bullpen Blueprint: Trade Fits – Part Two

The Seattle Mariners’ bullpen construction is not accidental. Each pitcher has a defined role within the unit. They all fit into a clear blueprint that

Seattle Mariners News / Seattle Mariners on SI / February 26

Mariners reliever Matt Brash back after missing a few days due to a dental issue

Matt Brash had more than mouthful of problems over the past week, as a swollen area around one of his teeth had him unavailable for a few days. Luckily, it was diagnosed by the team's staff and he was able to get dental surgery, but the swelling in its aftermath left the 27-year-old Mariner miserable.

Tyler Cleveland News / Lookout Landing / February 26

Mariners Prospect Rankings #15, RHP Tyler Cleveland

After a dominant 2025 season across two separate levels, Tyler Cleveland joins our Mariner prospect ranks at #15 this season. Given a boost thanks to recent

MLB News / Yardbarker Quizzes

The 'A.L. wins leaders since 2000' quiz

How many of the starting pitchers to lead the American League in wins since the 2000 season can you name in five minutes?

The 'Live-Ball Era strikeout leaders' quiz

The 'American League Cy Young winners' quiz

The 'MLB All-Star Game starting pitchers' quiz

Bryan Woo News / Seattle Mariners on SI / February 26

Mariners ace Bryan Woo talks about being a more vocal leader in 2026

For the past couple of seasons, Mariners starting pitcher Bryan Woo was considered somewhat of a 'quiet warrior', the kind of player who lets toughness do most of the talking.

Athletics News / Yardbarker

25 MLB players that could be traded during the 2026 season

The 2026 MLB season is right around the corner, and it is never too early to start thinking about how it might unfold. Seemingly, every year, we have a decent handle on who should contend and who is likely to struggle, which makes looking ahead to the trade deadline inevitable.

Ken Griffey News / Sneakers on SI / February 26

Ken Griffey Jr.'s Nike Sneakers Return in Retro Mariners Colors

Spring Training is here, and it is the most wonderful time of the year for baseball fans. Even better, all of the major brands are rolling out new and retro gear to celebrate the start of the new season.

MLB News / Seattle Mariners on SI / February 26

The Mariners take on the Cleveland Guardians in a battle of defending division winners

The Seattle Mariners are set to return to action on Thursday at the Peoria Sports Complex, where they will host the defending American League Central division champions, the Cleveland Guardians (88-74 in 2025).

Brendan White News / MLB on ClutchPoints / February 26

Mariners sign former Tigers reliever to minor league deal

The Seattle Mariners added experienced bullpen depth by signing right-handed reliever Brendan White to a minor-league contract, according to an announcement from the Atlantic League’s Lancaster Stormers on Tuesday.

Brendan Donovan News / Seattle Mariners on SI / February 25

Mariners analyst compares Brendan Donovan's productivity to 2025's lead-off numbers

On Wednesday, a prominent sports journalist weighed in on just what makes new Mariners lead-off man Brendan Donovan so effective at the top of the lineup.

MLB News / Seattle Mariners on SI / February 25

Mariners and Royals battle to a 8-8 draw in Cactus League action

The Seattle Mariners took the field today after sputtering out in their last couple of Spring Training games. They went head-to-head with the Kansas City Royals and completed the nine-inning matchup with an 8-8 tie.

Seattle Mariners News / Last Word On Sports / February 25

The Mariners’ Bullpen Blueprint: Defining Their Profile – Part 1

The Seattle Mariners have built one of the best bullpens in baseball, whether by trade or by player development. Seattle has become known not only for their ability to identify talent but also to develop it — often seeing certain traits others may not see and moulding a player to fit the Seattle mould.

MLB News / Yardbarker

25 MLB players who have the most to prove in 2026

The new MLB season brings opportunities as players head into their walk years and try to rebound from subpar performances. These 25 players stand out heading into 2026.

Should Red Sox trade for former All-Star infielder?

Mariners getting needed bat in All-Star Brendon Donovan via three-team deal with Cardinals, Rays

Giants CEO calls Dodgers a 'dragon to slay'

Yankees' latest endeavor points to a Jasson Dominguez mistake waiting to happen

Top of Phillies' rotation is elite, but also comes with questions

Seattle Mariners News / Seattle Mariners on SI / February 25

Report ranks Seattle Mariners' lineup as the best in the American League

Coming off a 90-win season and an AL West title in 2025, the Seattle Mariners were facing a lot of questions regarding how they were going to handle free agency.

MLB News / Lookout Landing / February 25

Mariners are heard, rarely seen, stalemate Royals 8-8

If you planned on killing some time this afternoon by watching some Mariners Cactus League baseball – or more enticingly, Bryan Woo’s first outing of 2026 – you were out of luck.

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

The 'Most multi-three NBA games' quiz

The 'Cy Young winners of the 2000s' quiz

The 'Last 1K-rushing-yard season by team' quiz

The 'Most NHL goals by an American' quiz

Dan Wilson News / Seattle Mariners on SI / February 25

Mariners manager Dan Wilson discusses the masterful job by the team's front office

If Mariners manager Dan Wilson believes that he's lived a charmed life, it's only because he has a lot of good reasons to. The former big league catcher returned to the team where he made his name and led them to a division title in his first full season on the bench.

Seattle Mariners News / New Baseball Media / February 25

2025-26 MLB Offseason Recap: Seattle Mariners

The 2025 Seattle Mariners came one win away from the team’s first-ever American League pennant. While Seattle was unsuccessful in its quest for a World Series berth, the team is still very much a contender to make it to the Fall Classic in 2026.

J.P. Crawford News / MLB on ClutchPoints / February 25

Mariners’ J.P. Crawford’s shoulder injury forces spring training ‘slow play’

After falling in seven games to the Toronto Blue Jays in the American League Championship Series in 2025, the Seattle Mariners have high hopes in 2026.

Josh Simpson News / Lookout Landing / February 25

40 in 40: The Mariners have a type, and it’s Josh Simpson

In recent years, the Mariners have developed a bit of a reputation as a major pitching lab. Not just through their minor league system, but also the success stories of journeyman relievers coming through Seattle and turning middling careers into All-Star/Team USA appearances.

Seattle Mariners News / MLB on ClutchPoints / February 25

Mariners All-Star voices hard truth of last year’s playoff heartbreak

The Seattle Mariners fell just short of reaching the World Series in 2025, as the Toronto Blue Jays ultimately earned a seven-game American League Championship Series win.

Seattle Mariners News / Seattle Mariners on SI / February 25

Seattle Mariners continue their Spring Training schedule against the Royals

The Mariners suffered another exhibition loss on Tuesday, 12-10, this time at the hands of the Chicago White Sox. Today, the M's will travel to Surprise, Arizona, on Wednesday, where they hope to sneak up on the Kansas City Royals and get back to their winning ways.

Bryan Woo News / Total Pro Sports / February 25

MLB Insider’s Bold Seattle Mariners-Bryan Woo Verdict Will Send Fans Into a Frenzy

The Seattle Mariners enjoyed a somewhat unexpected but hugely successful 2025 campaign after claiming the American League West title. In a strong postseason run, they went agonizingly close to clinching the AL pennant before losing the Champions Series to the Toronto Blue Jays.

MLB News / MLB Trade Rumors / February 23

Mariners Were Reluctant To Discuss Cole Young In Ketel Marte Talks

Among players who were not traded this offseason, few found themselves in more rumors than Ketel Marte. Arizona general manager Mike Hazen maintained throughout the winter that a trade was unlikely and said last month that talks never got close to a deal.

Seattle Mariners News / Total Pro Sports / February 23

Seattle Mariners 2026 Projected Lineup: Batting Order, Rotation & More

The Seattle Mariners enjoyed a highly successful 2025 campaign, undoubtedly one of the most memorable in the history of the franchise. However, they are still pursuing the maiden World Series crown for their loyal fanbase.

Seattle Mariners News / Last Word On Sports / February 22

Mariners Players Looking to Bounce Back in 2026

The Mariners enter 2026 with one of their deepest rosters in recent memory. In all departments, they look like a squad poised to back up their best season of the century.

Seattle Mariners News / Minor League Baseball on SI / February 21

Mariners' No. 5 Prospect Opens Eyes With Power Display in Spring Training Debut

Many Seattle Mariners fans are likely eager to see how their favorite team will build on their 2025 campaign, in which they came one win away from representing the American League in the World Series.

Seattle Mariners News / Total Apex Sports / February 21

Can the Seattle Mariners Overcome Less Power and Still Win In 2026?

The Seattle Mariners are heading into Spring Training with a roster that looks oddly familiar—and that’s actually a good thing. After their deepest playoff run in franchise history last season, the M’s are bringing back most of the squad that got them there.