Seattle Mariners: Breaking News, Rumors & Highlights

The Team USA reason Mariners catcher Cal Raleigh doesn’t expect boos in Houston during WBC

The Seattle Mariners are well represented on the international stage as catcher Cal Raleigh prepares to open World Baseball Classic play with Team USA.

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The Quiz of the Day

Veteran Luke Raley has returned for redemption after a rough season last year

As the Seattle Mariners continue to sort out who will be the last of their position players to make the Opening Day roster, it's become like an exclusive offer: time is limited and spots are filling up fast.

Colt Emerson News / Seattle Mariners on SI / March 5

Is Seattle sensation Colt Emerson destined to start the year in Triple-A now?

The 2026 campaign has already been a strange one in the young career of Colt Emerson. Heading into Spring Training, signs were pointing to the Mariners' top prospect making the big league roster on Opening Day, but that outlook appears to be changing.

Seattle Mariners News / Lookout Landing / March 5

Mariners Spring Training 2026, Game #13

Spring training doesn’t count, but the Mariners currently sit at 3-8 after losing again to the Giants last night. Spring training doesn’t count and also spring training doesn’t count, but it would sure be nice to bank another win, even if spring training doesn’t count.

Aaron Judge News / Yardbarker Quizzes

The '50-HR, .300 average MLB seasons' quiz

How many of the 20 MLB players to bat .300 and mash 50 home runs in the same season can you name in five minutes?

The 'Last 40-homer season by MLB team' quiz

The 'Active 100-RBI MLB season leaders' quiz

The 'Live-Ball Era strikeout leaders' quiz

Teddy McGraw News / Lookout Landing / March 5

Mariners Prospect Rankings #13, RHP Teddy McGraw

There is a very good chance that Teddy McGraw debuts as a Mariner before anyone else on this list. There is also a very good chance he never debuts at all.

Athletics News / Yardbarker

One storyline to follow for every MLB team in 2026

As Spring Training opens for 2026, all 30 teams have high hopes and big questions. These are the storylines to follow for each team heading into Opening Day.

Cooper Criswell News / Lookout Landing / March 5

Cooper Criswell finds a role with the Mariners

Starter, reliever, long guy – it doesn’t matter to Cooper Criswell. He’ll embrace whatever role the team wants to give him. “My dad was a basketball coach for 30-plus years, and he always told his teams, every guy on a team has a role, and you need to know your role,” Criswell said.

Seattle Mariners News / Just Baseball / March 5

Keep an Eye on the Mariners’ Back-End Bullpen Trio

Fresh off an American League West title in 2025, the Seattle Mariners remain one of Major League Baseball’s top teams. Led by Cal Raleigh and Julio Rodríguez, the squad remains hungry and will be back in the hunt for their first World Series title in 2026.

Bryan Woo News / Seattle Mariners on SI / March 5

Mariners Ace continues his sharp Spring, as he pitches in Arizona, not the WBC

Strangely, losing games has still proved to be fortuitous for the Mariners in Spring Training play, as they get set to defend their AL West Championship.

Seattle Mariners News / Lookout Landing / March 5

Mariners prove “close” only counts sometimes in baseball, lose 9-4

It never feels good to have someone tell you that “almost isn’t good enough,” or that “close doesn’t cut it.” Growing up in the south, the phrase I always

Seattle Mariners News / Lookout Landing / March 4

Mariners Spring Training 2026, Game #12

With the start of the World Baseball Classic, many Mariners are on loan to their respective national teams. As such, get ready to see some weird looks from the M’s as the organization gives some unusual opportunities to top prospects.

Seattle Mariners News / Just Baseball / March 4

Down on the Farm: Mariners Top Prospect Notes

Even after acquiring Brendan Donovan, the Seattle Mariners have one of baseball’s best farm systems, headlined by three top 30 prospects and five in the preseason top 100.

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.

Justin Hollander News / Seattle Mariners on SI / March 3

Seattle GM Justin Hollander says two prominent pitching prospects could debut in 2026

It's aleady been quite a Spring for the Seattle Mariner's top two pitching prospects, lefthander Kade Anderson and righty Ryan Sloan. The pair of young starters have been bowing away their teammates and coaches with their sensational stuff.

Cal Raleigh News / Athlon Sports / March 3

Cal Raleigh Makes Announcement Ahead of 6th Mariners Season

The Seattle Mariners had one of the best seasons in franchise history last year, coming just one win short of reaching their first ever World Series. Fortunately

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The 'NFL year-by-year sack leaders' quiz

The 'Active NFL carries leaders' quiz

The 'Most passing + rushing TD games' quiz

The 'NBA 30-point game leaders' quiz

Brendan Donovan News / Seattle Mariners on SI / March 3

MLB Announcer calls Mariners' Brendan Donovan a 'humongous, tremendous' addition

By now, the votes are in, and it's official: Acquiring Brendan Donovan already looks like one of the best moves in Seattle Mariners' franchise history.

Seattle Mariners News / Last Word On Sports / March 2

Mariners Position Battle for Second Base

With the 2026 season approaching, the question of the Opening Day starting lineup is arising. The main question is, who will be the starting second baseman, with a few options to choose from.

Brendan Donovan News / Total Pro Sports / March 2

'Does Just About Anything You Need To Win' – Mariners President Hails 'Missing Ingredient' Brendan Donovan

Brendan Donovan became a hot commodity on the trade market this winter after his excellent 2025 campaign for the St. Louis Cardinals. Several organizations reportedly pursued Donovan for a two-month period in the offseason to no avail.

Ryan Sloan News / Seattle Mariners on SI / March 2

19-year-old Ryan Sloan brings the heat in the Mariners loss to the Rangers

If wins and losses mattered in Spring Training? Then the Mariners fan base would be in panic mode over the current losing trend taking place out in Peoria, Arizona.

Seattle Mariners News / Last Word On Sports / March 2

Mariners Storylines to Watch Out for at the WBC

With MLB Opening Weekend fast approaching, the season is now upon us. The Seattle Mariners will be the most represented team in the WBC with 16 players reporting for their respective countries.

Bryce Miller News / Athlon Sports / February 28

Bryce Miller's Sudden Injury Leaves Mariners With Rotation Question

The Seattle Mariners are expected to have one of the best starting rotations in all of MLB this season. On Saturday, however, Daniel Kramer of MLB.com revealed that right-handed starter Bryce Miller is dealing with an injury concern.

Seattle Mariners News / MLB on ClutchPoints / February 28

Mariners’ JP Crawford, Bryce Miller receive important spring training injury updates

The Seattle Mariners are facing a challenging start to the 2026 spring training season as they aim to build on their recent ALCS appearance. Earlier this month, there was optimism surrounding young pitcher Bryce Miller, who reported feeling 100% after an elbow injury hampered his 2025 season.

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.

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.

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.

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.