Seattle Mariners: Breaking News, Rumors & Highlights

Mariners’ 2027 Starting Rotation Projection Puts Kade Anderson in the Starting Five

Luis Castillo is gone, and the Seattle Mariners will have a new veteran buffer at the top of their rotation. It’s not like they’re scrambling for more arms.

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The Morning Bark

The Quiz of the Day

MLB’s 154-Game Proposal Helps the Mariners Until the Salary Cap Catch Emerges

Major League Baseball has found an appealing way to advertise its latest labor proposal. Players would get a little more rest and fans would get fewer weekday afternoon playoff games.

Seattle Mariners News / Yardbarker / October 10

Three questions facing the Seattle Mariners this offseason

The Mariners are at a crossroads heading into the offseason.

Former MLB GM believes Braves should target Randy Arozarena

The 'Switch-hitter 35-HR seasons' quiz

Seattle Mariners News / Seattle Mariners on SI / October 10

Projecting the Mariners’ 2027 Opening Day Lineup Before Their Next Major Move

The Mariners cannot fix a 76-win season by simply changing the manager and waiting for healthy bodies to show up. Their projected 2027 lineup makes it pretty clear.

Max Muncy News / Yardbarker Quizzes

The 'Most 3-HR MLB Playoffs' quiz

Can you name every MLB player to hit at least three home runs in multiple postseasons in eight minutes?

Seattle Mariners News / Seattle Mariners on SI / October 9

What a Successful Mariners Offseason Actually Looks Like

The Mariners spent 2026 learning how quickly a championship window can start closing. It’s almost like they weren’t paying attention to those who warned them about it.

Athletics News / Yardbarker

The most surprising player from every MLB team for the 2026 season

The 2026 season has been headlined by young players emerging, but some wily veterans have also had their day. As we head toward the end of the regular season, these 30 players stand out as the biggest surprises on their teams.

Luke Raley News / Seattle Mariners on SI / October 8

Luke Raley Could Be the Odd Man Out in Mariners’ 2027 Roster Plans

The Mariners are not staring at an impossible Luke Raley decision. But it’s a potentially uncomfortable conversation. Raley still has enough power from the left side of the plate to make an impact on the roster.

Seattle Mariners News / Seattle Mariners on SI / October 8

The Biggest Free-Agent Mistake the Mariners Must Avoid This Winter

The Mariners cannot spend another winter shopping for power with a bargain attached to the cost. We know the type they’ve gone after. A guy with some pop and a marketable skill.

Logan Gilbert News / Seattle Mariners on SI / October 7

Bleacher Report’s Proposed Logan Gilbert Trade to Twins Is All Wrong for Mariners

The Mariners need another dependable bat. Bleacher Report’s solution is to trade one of their most dependable pitchers for three more players with upside.

Seattle Mariners News / Seattle Mariners on SI / October 7

Breaking Down Every Major Mariners Contract Decision for 2027

The Mariners have a long list of offseason tasks. Among them is a stack of paperwork that will tell us exactly how serious they are about fixing this roster.

Seattle Mariners News / Just Baseball / October 7

Seattle Mariners Arbitration Projections and Tender Decisions

Once a team comes up with its projected salary for all of its arbitration-eligible players, it will begin a tender analysis to simply determine: “Are we comfortable guaranteeing Player X this much money?” If the answer is yes, the player will be tendered a contract prior to the mid-November Tender Deadline.

Jerry Dipoto News / Seattle Mariners on SI / October 6

Jerry Dipoto Flags Troubling Disconnect in Mariners Player Development

One of the more important comments Jerry Dipoto made about the Mariners’ managerial search was an admission about player development. “Multiple of our Major League players who came through our system have referenced what they learned in player development that got abandoned in the big leagues this year,” Dipoto told MLB.com.

MLB News / Yardbarker

The most disappointing player from every MLB team for the 2026 season

The 2026 season hasn't gone as planned for many MLB players. These 30 players stand out as the biggest disappointments for their respective teams.

George Kirby News / Seattle Mariners on SI / October 6

Mariners’ Vaunted Pitching Lab May Have Overengineered George Kirby

George Kirby used to make pitching look uncomplicated. He was a strikethrower, challenged hitters with a lively four-seam fastball and trusted his command to clean up the rest.

Seattle Mariners News / MLB Trade Rumors / October 6

Mariners announce surgeries for Cal Raleigh, Josh Naylor

The Mariners announced that catcher Cal Raleigh and Josh Naylor underwent surgical procedures on October 3. Both players are expected to be recovered before the start of spring training.

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

The 'Rushing TDs by active NFL WRs' quiz

The 'Most 3-HR MLB Playoffs' quiz

The 'NFL most receiving-1st downs' quiz

The 'Last 2-rushing-TD duos by team' quiz

George Kirby News / MLB Trade Rumors / October 5

George Kirby’s Fastball Failed Him

Mariners right-hander George Kirby just put together the worst season of his career. He stumbled to a 4.33 ERA as one of the key contributors to a disappointing season for Seattle’s vaunted rotation.

Seattle Mariners News / Athlon Sports / October 3

Mariners Make Roster Move After Missing MLB Playoffs

The Seattle Mariners are wasting little time getting to work after missing the 2026 MLB postseason. Just days after their season ended, the club made an early offseason roster move by claiming first baseman and outfielder Michael Toglia off waivers from the Cincinnati Reds.

Seattle Mariners News / Viral Sports News / October 2

Mariners Already Predicted to Land $150 Million Slugger

The Seattle Mariners are being projected to land Seiya Suzuki once the free-agent market opens, a prediction that would send the longtime Chicago Cubs outfielder to the American League West and reshape both clubs’ winter plans.

Seattle Mariners News / Just Baseball / October 1

Five Mariners Who Need To Be Better Next Season

At the start of every season, fans take a look at the Seattle Mariners roster and wonder if it will finally be the season when they win it all. This year was surely no exception.

Seattle Mariners News / Lindy's Sports / October 1

The Mariners Fired the Wrong Guy

The Seattle Mariners were finally, mercifully eliminated from MLB playoff contention mid-afternoon last Friday, Sept. 25, due to a Texas Rangers win. This 2026 edition of the historically beleaguered Mariners deserved it.

Nolan Jones News / Viral Sports News / September 29

Mariners Already Lose 28-Year-Old Slugger to Free Agency

Nolan Jones is moving on from the Seattle Mariners. After a year spent entirely in Triple-A and a late-season arrival as extra outfield depth, the 28-year-old has elected free agency rather than remain in the Mariners’ minor-league system, via the MiLB transaction log.

Jerry Dipoto News / Athlon Sports / September 29

Mariners GM Jerry Dipoto says Seattle will hire from outside the organization to find its next manager: 'We need fresh thought, we need something new'

Seattle Mariners president of baseball operations Jerry Dipoto says the organization will look outside the franchise for its next manager. Dipoto confirmed the decision following Seattle’s 2026 season, saying the Mariners need a different perspective as they begin searching for a replacement for Dan Wilson.

Seattle Mariners News / EssentiallySports / September 29

Mariners’ Manager’s Exit Triggers Major Shake-Up After Disastrous 2026 Collapse

In 2025, the Seattle Mariners were just one game away from making it to the World Series but lost in the ALCS. That gave fans some hope for 2026, but all that came crashing down as they finished with a 76-86 record, 8 games behind the last Wild Card spot, and ended the Dan Wilson Era.

Dan Wilson News / Larry Brown Sports / September 28

Mariners move on from 4 more coaches after Dan Wilson decision

The Seattle Mariners missed the playoffs in 2026 despite making the ALCS a year ago, and they decided to relieve manager Dan Wilson of his duties after the final game of the regular season.

MLB News / Yardbarker / September 28

Four potential managerial candidates for Mariners

The Seattle Mariners are officially looking for a new manager. Here are four potential candidates.

The 'MLB player name riddles' quiz

Dan Wilson News / MLB Trade Rumors / September 27

Dan Wilson won't return as Mariners’ manager in 2027

Mariners manager Dan Wilson told the team before today’s season finale that he wouldn’t be returning to the job for next season, the Seattle Times’ Ryan Divish reports.

The 'Switch-hitter 35-HR seasons' quiz

Seattle Mariners News / Larry Brown Sports / September 27

Top Mariners prospect leaves game after getting hit by 104-mph comebacker

Seattle Mariners fans held their collective breath as Kade Anderson left Saturday’s game with an injury. The Mariners’ No. 1 prospect left the mound early against the Los Angeles Angels after getting hit by a 103.8-mph comebacker in the 4th inning at T-Mobile Park in Seattle, Wash.

Seattle Mariners News / Larry Brown Sports / September 19

Randy Arozarena is being linked to 1 team in rumors

Randy Arozarena could be eyeing a return to the AL East. The Seattle Mariners All-Star outfielder Arozarena is “likely” to leave the team in free agency this offseason, Ryan Divish of The Seattle Times reported this week.