Seattle Mariners: Breaking News, Rumors & Highlights

Ketel Marte News / Seattle Mariners on SI / December 20

Could Ketel Marte be returning to Seattle to fill the void at second base?

The Seattle Mariners are facing a need at second base, following the departure of free agent Jorge Polanco to the New York Mets. Fortunately for them, there's a familiar face down in Phoenix that could very well return to the Emerald City to man the keystone once again in 2026.

Brennen Davis News / MLB Trade Rumors / December 20

Mariners Sign Brennen Davis To Minor League Deal

The Yankees have signed outfielder Brennen Davis to a minor league deal, as reported by Aram Leighton of Just Baseball. The deal includes an invite to MLB Spring Training.

MLB News / Fastball on SI / December 20

Mariners Insider Drops Cryptic Update On Potential Cardinals Trade

Figuring out where the Seattle Mariners stand in their quest for a second baseman is somewhat challenging at the midway point of the offseason. Whether he was going to stick at second base long-term or not, it was clear that the Mariners had their sights set on a reunion with Jorge Polanco above all else.

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Colt Emerson News / Seattle Mariners on SI / December 20

Colt Emerson's eventual Mariners debut is already stirring excitement, interest

Ever since being drafted 22nd overall in the 2023 MLB Draft, it seems as if the Mariners' top prospect has been on a fast track to the Major Leagues. And for 20-year-old Colt Emerson, a prep hero from Ohio, has seemingly gone from high school to high expectations in short order.

Athletics News / Yardbarker

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.

Seattle Mariners News / The Spun / December 20

Beloved Former Seattle Mariners Pitcher Has Died At 61

The MLB community learned Saturday that a former first-round pick and longtime pitcher passed away at the age of 61. Mike Campbell reportedly died this past Monday at his home in Kirkland, Washington.

Seattle Mariners News / Seattle Mariners on SI / December 20

Justin Hollander and Jerry Dipoto have formed a Dynamic Duo in Mariners' front office

As the Mariners continue to shop the Hot Stove League for players who will eventually make up the 2026 roster, the franchise is in good hands with two of the better minds in the game today.

Seattle Mariners News / MLB on ClutchPoints / December 19

1 blockbuster move Mariners must make after MLB Winter Meetings

The‍‌‍‍‌‍‌‍‍‌ Seattle Mariners need a new infield asset and Brendan Donovan of the St. Louis Cardinals is the go-to guy. The Mariners are in urgent need of a batter who can bring in runs and offer lineup stability after a very gloomy postseason.

MLB News / Fastball on SI / December 19

Mariners Again Linked To Diamondbacks 3-Time All-Star In Trade Rumors

The Seattle Mariners have been on the rise lately. They made it to the ALCS for the first time since 2001 and came to within one win of the World Series.

MLB News / Fastball on SI / December 18

Mariners Lose 27-Year-Old Free Agent Backstop To Padres

Catching depth matters a lot in Major League Baseball, even to the team with the best backstop in the game. Following Cal Raleigh's incredible season that saw him earn a second-place nod in Most Valuable Player voting, the Seattle Mariners have had a surprising amount of offseason transactions centered around the catching position.

Seattle Mariners News / Fastball on SI / December 18

AL East Team Targeted Mariners Postseason Hero Before Departure

The Seattle Mariners recently lost Jorge Polanco in free agency to the New York Mets. The 32-year-old signed a two-year, $40 million contract to replace Pete Alonso at first base.

MLB News / Yardbarker

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.

Cal Raleigh News / Seattle Mariners on SI / December 18

What should the Mariners & Fans realistically expect from Cal Raleigh in 2026?

AL MVP runner-up Cal Raleigh had one of the most impressive career years in baseball history in 2025, crushing 60 long balls and setting the single-season home run ewxord for both a catcher and a switch hitter.

Seattle Mariners News / Fastball on SI / December 18

Mariners Could Be Out After New Update on Japanese Slugger

The Seattle Mariners have been relatively quiet since re-signing Josh Naylor back in November. Unfortunately, they have some holes to fill, as Jorge Polanco left in free agency for the New York Mets.

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Seattle Mariners News / Seattle Mariners on SI / December 18

MLB Insider discusses where the Mariners could be headed now in the off-season

With the free agent departure of second baseman Jorge Polanco, trade talk has been swirling around Seattle regarding the Cardinals' Brendan Donovan as a trade target of the Mariners.

MLB News / Fastball on SI / December 17

Jorge Polanco Says Goodbye To Mariners With Classy Message

The Seattle Mariners' infield is going to look a bit different in 2026. On the bright side, the Mariners took care of Josh Naylor early in the offseason and handed him a five-year, $92.5 million deal.

Seattle Mariners News / Fastball on SI / December 17

Unexpected AL West Rival Could Poach Mariners’ 2-Time All-Star

The Seattle Mariners had a strong 2025 season, coming within one win of their first World Series appearance in franchise history. They managed to keep Josh Naylor around, but lost Jorge Polanco in free agency.

Gregory Santos News / MLB Trade Rumors / December 17

Giants, Gregory Santos Agree To Minor League Deal

The Giants have agreed to a minor league deal with right-handed reliever Gregory Santos, as first reported by Mike Rodriguez. He’ll be in major league camp as a non-roster invitee next spring.

Seattle Mariners News / Seattle Mariners on SI / December 17

Mariners provide holiday help to Seattle's less fortunate citizens

The Seattle Mariners Ownership Group announced Tuesday that it will match donations made to Home Team Harvest through the end of the year. Every donation made up to $100,000 will be matched as Northwest Harvest works towards raising $5 million to feed our community.

Seattle Mariners News / MLB on ClutchPoints / December 16

Mariners give Cal Raleigh a backup by signing ex-Cardinals catcher

The Seattle Mariners signed catcher Andrew Knizner to a one-year MLB contract, the team announced in a press release on Tuesday. The Knizner signing brings the Mariners’ 40-man roster to 39 total players at the moment.

Seattle Mariners News / Last Word On Sports / December 16

Mariners Options at Third Base: Solutions at the Hot Corner

The Seattle Mariners ended the season with one of the deepest rosters they have ever put together, finishing agonizingly short of a maiden World Series.