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On YouTubeJorge Polanco News / Fastball on SI / December 9
Insider's Latest Jorge Polanco Update Bodes Well For Mariners
The Seattle Mariners had a season to remember in 2025, winning 90 games and an American League West title while also making a run to the ALCS for the first time since 2001.
MLB News / Fastball on SI / December 9
Mariners Reportedly Eyeing Cardinals’ 2.07 ERA Bullpen Standout
The Seattle Mariners look like a team that is ready to contend again in 2026 on paper. But they aren't done yet. Seattle has had a solid offseason to this point.
Jorge Polanco News / Fastball on SI / December 9
Mariners Get Eye-Opening Jorge Polanco Update From MLB Insider
The Seattle Mariners' stated offseason goal is to keep the band together as much as possible, and Jorge Polanco was a key part of their sound this year.
The 'AL and NL MVPs since 2000' quiz
How many of the AL and NL MVPs since the 2000 MLB season can you name in six minutes?
Luis Castillo News / MLB Trade Rumors / December 8
Mariners' trade stance on Luis Castillo revealed
The Seattle Mariners were willing to listen to offers for Luis Castillo at this time last year, but the right-hander ultimately remained with Seattle. The club doesn’t intend to shop Castillo during this year’s winter meetings, reports Adam Jude of the Seattle Times.
25 MLB players on the brink of stardom in 2026
The stars were out in full force during the 2025 World Series. From Max Scherzer in Toronto to Freddie Freeman, Mookie Betts, and of course, Shohei Ohtani, in Los Angeles, there was no shortage of the game's best under the brightest lights.
MLB News / Fastball on SI / December 8
Mariners Predicted To Lose 2-Time All-Star To Angels
The Seattle Mariners already have re-signed one of their big trade deadline additions. But what about the other one? Josh Naylor is locked in with Seattle on a shiny, new five-year deal.
MLB News / Fastball on SI / December 8
Mariners Reportedly Showing Interest in Diamondbacks’ 3-Time All-Star
The Seattle Mariners have been productive so far this offseason. They already re-signed Josh Naylor to a five-year, $92.5 million contract. But they still need more offense.
Seattle Mariners News / Lookout Landing / December 8
Mariners Announce 2026 Coaching Staff 
The Seattle Mariners recently announced their 2026 coaching staff. The staff experienced relatively little turnover from 2025 to 2026, with only the notable departures of Kristopher Negrón to join the Pittsburgh Pirates staff, Tony Arnerich to the Guardians, and the return of Louis Boyd to player development as assistant director.
Seattle Mariners News / Fastball on SI / December 8
Mariners' $26 Million Star Projected To Bolt For Deal With Pirates
The Seattle Mariners entered the offseason with three key free agents: Jorge Polanco, Eugenio Suárez, and Josh Naylor. The Mariners already signed Naylor to a new deal, but the pair of Polanco and Suárez sit in free agency.
Seattle Mariners News / Lookout Landing / December 8
The 50 greatest Mariners left fielders, as chosen by Zach
2026 represents the Mariners’ 50th season, and we’re starting to see some Top 50 lists in connection with the season-long celebration. The team is even holding a live vote for the 50 “greatest” Mariners that you can go participate in right now.
Harry Ford News / Fastball on SI / December 8
Why Mariners Cut Ties With Top Prospect Harry Ford, Per Insider
The Seattle Mariners' trade with the Washington Nationals on Saturday drew stronger reactions than a typical deal to acquire a relief pitcher. To land Jose A.
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.
Randy Arozarena News / Fastball on SI / December 7
Mariners Insider Has Randy Arozarena Update Ahead Of Winter Meetings
It's not a topic that's been boiling on the stove, but the idea of the Seattle Mariners trading Randy Arozarena this offseason is at least worth entertaining.
San Diego Padres News / Yardbarker / December 7
Three potential landing spots if Padres trade Jake Cronenworth
Trading Cronenworth would cut payroll, which can then be put back into the team on the mound.
Mitch Garver News / MLB Trade Rumors / December 6
Mariners open to reunion with Mitch Garver
The Seattle Mariners traded catcher Harry Ford to the Nationals earlier on Saturday as part of a deal for lefty reliever Jose A. Ferrer. In the wake of that move, the club is open to a reunion with free agent Mitch Garver, according to Adam Jude of the Seattle Times.
Harry Ford News / Field Level Media / December 6
Nationals trade LHP Jose A. Ferrer to Mariners for C Harry Ford
The Washington Nationals traded left-handed pitcher Jose A. Ferrer to the Seattle Mariners in exchange for catcher Harry Ford and right-hander Isaac Lyon, the teams announced on Saturday.
MLB News / Fastball on SI / December 6
Mariners Complete Head-Scratching Trade, Ship Top 100 Prospect To Nationals
The Seattle Mariners entered the offseason needing left-handed relief help, and they must really like Jose A. Ferrer's odds of becoming a stud in their bullpen.
MLB News / Yardbarker / December 6
Mariners trade top catching prospect Harry Ford for surprising return
Catching prospect Harry Ford is blocked at the major league level in the Seattle Mariners organization. As the Mariners are looking to improve the roster for a deep playoff run, Ford was expected to be on the trade block. That trade happened on Saturday.
Seattle Mariners News / MLB on ClutchPoints / December 6
Mariners urged to sign Munetaka Murakami in free agency
The Seattle Mariners won the AL West for the first time in 24 years but the season ultimately ended in disappointment. The Mariners lost the ALCS to the Toronto Blue Jays in a heartbreaking Game 7.
Seattle Mariners News / Total Apex Sports / December 5
Cadillac Wayne Taylor Racing Aims for Improved Performance in 2026 Campaign
Let’s cut to the chase. The back half of the 2025 IMSA season was a Cadillac showcase. The Whelen No. 31, with Jack Aitken behind the wheel, was a beast, ripping off two straight wins to close the season and cementing Aitken as the runner-up in the GTP standings.
MLB News / Seattle Mariners on SI / December 5
Josh Naylor honored in his native country for his 2025 season
Seattle Mariners first baseman Josh Naylor was honored with the 2025 James Tip O'Neill award for outstanding Canadian baseball achievement, the team announced on Thursday.
Seattle Mariners News / Seattle Mariners on SI / December 5
The Seattle Mariners could fill two starting spots with a spectacular St. Louis trade
With the Hot Stove League's flames beginning to get higher, every team in MLB is re-shuffling the deck for the upcoming season. Between free agency and trade talk at the upcoming winter meetings, general managers have a wish list for the holiday season.
Josh Naylor News / Athlon Sports / December 4
Mariners Share Josh Naylor News on Thursday
Seattle Marinersfirst baseman Josh Naylor has had a very productive career in Major League Baseball thus far. He has been in the majors for seven years, batting .269 with a .777 OPS, 104 home runs and 435 RBIs.
Seattle Mariners News / Seattle Mariners on SI / November 30
The Mariners will benefit for years ahead, thanks to their Trio of Superstars
With the 2025 American League West division and a 90-win season on their resume, the Seattle Mariners have been diligently piecing together a roster that could be contenders for years to come.
Nick Anderson News / Inside The Rink / November 29
ECHL: Maine Mariners Acquire Nick Anderson From Orlando Solar Bears
The Maine Mariners have acquired defenseman Nick Anderson from the Orlando Solar Bears in exchange for future considerations. Anderson, 26, has seven assists with Orlando since finishing up his collegiate career.
Josh Naylor News / Yardbarker / November 17
Report: Mariners to make first major signing of offseason
The Seattle Mariners had reportedly considered retaining first baseman Josh Naylor to be their top priority in free agency. Their wish has reportedly come true.
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