Seattle Mariners: Breaking News, Rumors & Highlights

Mariners' Luis Castillo Made 1 Pivot That Could Change Everything

The Seattle Mariners feature one of the best starting rotations in all of MLB. Bryan Woo was a breakout star last year, while Logan Gilbert is an ace-caliber starter.

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The Quiz of the Day

Mariners lose sleepy Cactus League contest to Diamondbacks, 3-1

It’s another latercap, brought to you by my charming inability to plan ahead and impetuous decision-making, which has led to me sitting in the parking lot of this Peoria Lowe’s using their free wi-fi to push out a recap of a 3-1 Mariners loss to the Diamondbacks that will be as stale as old coffee tomorrow, but the completist in me insists.

Seattle Mariners News / Inside The Rink / February 28

ECHL Game Recap: Maine Mariners vs Adirondack Thunder | 02/27/2026

The Adirondack Thunder kicked off Stick It To Cancer Night on Friday Night as they looked to extend their win streak against the Maine Mariners. Coming into the game, both teams had been playing some good hockey as the Maine had won their last five games, all of which came on the road.

Cole Young News / Seattle Mariners on SI / February 27

Mariners General Manager says infield prospect is ‘showing us that he’s ready’

For Seattle Mariners prospect Cole Young, 2026 is all about redemption. Not in the biblical sense, but more like a blessing in the baseball world. After one failed audition at the big league level, the 22-year-old infielder wants to show everyone that he's not just a product of hype.

CC Sabathia 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

Kade Anderson News / Seattle Mariners on SI / February 27

21-year-old Kade Anderson will start for Seattle on Saturday

The Seattle Mariners announced on Thursday that left-handed pitcher and first-round pick Kade Anderson will get the start on Saturday, according to Roundtable Sports.

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.

Seattle Mariners News / Lookout Landing / February 27

What are your way-too-early Seattle Mariners Spring Training hot takes? The hotter, the better

Happy Friday! We’ve got a whopping seven games of Mariners Spring Training under our collective belts and it’s high time to foolishly prognosticate! Here are some prompts: What is your favorite Spring Training story line that is emerging so far?

Seattle Mariners News / Seattle Mariners on SI / February 27

Colt Emerson's rise with the Mariners is being compared to Julio Rodriguez in 2022

From Ken Griffey Jr to Julio Rodriguez, the Seattle Mariners have had their share of fantastic phenoms in their history. Now, the M's have another early bloomer in their midst, as Colt Emerson's almost unbelievable path to The Show mimics that of Seattle's current franchise player.

MLB News / Lookout Landing / February 27

Mariners defeat Guardians 8-7: This is a long drive for someone with baseball to think about

This recap is late because it is being typed out on the bar of a lovely establishment in Twin Falls, Idaho, called Scooter’s. I am on my way to spring training and listened to this game – even though it was televised – while driving up and down various mountain passes.

Julio Rodriguez News / Seattle Mariners on SI / February 26

Will Julio Rodriguez win his first Gold Glove in 2026?

Despite being one of the best overall offensive weapons in Major League Baseball today, Julio Rodrigueznever rests on just his performance in the batter's box.

Seattle Mariners News / Last Word On Sports / February 26

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.

Seattle Mariners News / Last Word On Sports / February 26

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

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

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.

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.

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

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

The 'Most multi-three NBA games' quiz

The 'Cy Young winners of the 2000s' quiz

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

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.

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.

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 / 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.

Julio Rodriguez News / MLB on ClutchPoints / February 24

Mariners star Julio Rodriguez issues clear statement after posting career highs in 2025

The Seattle Mariners received a calm yet powerful message from their franchise star as spring training ramps up in Peoria. Julio Rodriguez, fresh off career highs in 2025, has made it clear that his next leap in the 2026 season will be fueled by trust—not tension.

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 / 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.