Seattle Mariners: Breaking News, Rumors & Highlights

Mariners Could Pursue Popular Cardinals Trade Target, Per Insider

To go deeper into the playoffs than they just went, the Seattle Mariners will need more help than they've already secured. Re-signing first baseman Josh Naylor may have been the big-ticket item for the Mariners this offseason, but they still have gaping holes at second base and third base as well.

Features

The Morning Bark

The Quiz of the Day

Mariners MaiLLbag 11/21/25: Starting Pitching, Troy Taylor, Prospect Debuts

For this week’s MaiLLbag, I’ve picked four questions and enlisted Max and Isabelle for an assist. If you asked a question in the site comments or on BlueSky and haven’t seen it answered yet, don’t worry, I’ll get to it soon.

Seattle Mariners News / Fastball on SI / November 21

Mariners Predicted To Land $116 Million All-Star In Blockbuster Trade

The Seattle Mariners made a few big moves at the trade deadline to push for the World Series. These moves helped the team, but they didn't win the World Series.

Josh Naylor News / Fastball on SI / November 21

Mariners President Has Admission About Josh Naylor Signing That Will Fire Up Fans

The Seattle Mariners' Josh Naylor signing could remain the biggest move of the Major League Baseball offseason for a while longer. It's not normal to see

Philadelphia Phillies News / Yardbarker Quizzes

The '50-home-run MLB seasons' quiz

How many of the players to reach the 50-home run milestone in one MLB season can you name in five minutes?

The 'Active MLB home run leaders' quiz

The 'MLB yearly runs created leaders' quiz

The 'Playoff home run leaders by MLB team' quiz

Seattle Mariners News / Seattle Mariners on SI / November 21

This Off-Season may be the Mariners' biggest one ever

The Hot Stove League is in full swing, as the weather begins to get colder and colder. At the same time, the Seattle Mariners are looking to build of their historical success in 2025 and build for the immediate future and beyond.

MLB News / Yardbarker

25 notable MLB Hall of Famers who never won a World Series

Among the countless Hall of Famers who never experienced the joy of winning a World Series, there are several notable legends who stand out. Here's our list of the 25 greatest.

Seattle Mariners News / Lookout Landing / November 20

Seattle Mariners set to hold Randy Johnson number retirement ceremony on May 2, 2026

The Big Unit’s big number will soon be retired by the Seattle Mariners at T-Mobile Park, joining the ranks of Ken Griffey, Jr, Edgar Martinez, Ichiro Suzuki, and Jackie Robinson on May 2, 2026, when the Mariners play the Kansas City Royals.

MLB News / Yardbarker / November 20

The three best trade fits for infielder Brendan Donovan

The St. Louis Cardinals are undergoing some big changes this offseason. Under Chaim Bloom, they will be looking to make some big trades.

The most annoying fan bases in sports

The '2025 MLB All-Star Starters' quiz

Seattle Mariners News / Fastball on SI / November 20

Mariners Insider Shares Major Update on Team’s Pursuit of 2x All-Star

The Seattle Mariners have already accomplished their biggest goal of the offseason: bringing back Josh Naylor. He re-signed for five years and $92.5 million.

Seattle Mariners News / ESPN / November 20

Mariners to retire Johnson's No. 51 in '26 season

Hall of Fame left-hander Randy Johnson will have his No. 51 retired by the Seattle Mariners during a pregame ceremony on May 2, 2026, the club announced Thursday.

Seattle Mariners News / Athlon Sports / November 20

Mariners Announce Randy Johnson News Amid MLB Offseason

Legendary left-hander Randy Johnson had one of the greatest pitching careers of all time. In his 22-year MLB career, which spanned six franchises, Johnson had a record of 303-166 in 618 appearances, as he had a 3.29 ERA and struck out 4,875 batters, which is the second-most all-time.

Seattle Mariners News / MLB on ClutchPoints / November 20

Mariners rumors: 1 player Seattle hopes to re-sign in free agency

The Seattle Mariners opened MLB Free Agency with a bold move by locking in Josh Naylor on a five-year deal and sending a message about their intent after an ALCS run that fell one win short.

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.

Josh Naylor News / Fastball on SI / November 20

Mariners GM Provides More Evidence Josh Naylor's Contract Was Home Run

It's hard to dull the excitement around the Seattle Mariners re-signing first baseman Josh Naylor. Earlier this week, Seattle officially inked its marquee trade deadline acquisition to a five-year, $92.5 million contract that will keep him around through 2030.

Seattle Mariners News / Fastball on SI / November 20

Mariners Predicted To Sign Slugger To Solid 2-Year, $40 Million Deal

The Seattle Mariners took a huge risk at the trade deadline when they made a pair of trades for two expiring sluggers. The Mariners added infielders Josh Naylor and Eugenio Suárez in an attempt to push for the World Series.

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The '2022 NFL Week 1 starting QBs' quiz

The 'NFL single-game completions leaders' quiz

The 'NFL QB rushing TD leaders' quiz

The 'NFL yearly tackles-for-loss leaders' quiz

Seattle Mariners News / Fastball on SI / November 20

Mariners Have Been in Touch With All-Star Second Baseman, Per GM

The Seattle Mariners just completed a very successful 2025 season and wasted no time getting to work this offseason. As the first big move of the winter, Seattle re-signed Josh Naylor to a five-year, $92.5 million contract.

Seattle Mariners News / Fastball on SI / November 20

Mariners' $108 Million Star Emerging As Offseason Trade Candidate

The Seattle Mariners were one of the best teams in the league this year, but they fell short of the World Series as the Toronto Blue Jays won the American League Championship Series.

Seattle Mariners News / MLB Trade Rumors / November 20

Mariners remain interested in Jorge Polanco after Josh Naylor deal

The Mariners have made the biggest move of free agency to date, re-signing Josh Naylor to a five-year deal. The $92.5M commitment was handily their biggest to a free agent hitter in the decade that Jerry Dipoto has run baseball operations.

Josh Naylor News / Fastball on SI / November 19

Mariners Insider Shares Blunt Opinion On Josh Naylor Signing

On Sunday night, the Seattle Mariners made the first big move of the offseason, re-signing first baseman Josh Naylor to a five-year, $92.5 million contract.

MLB News / Lookout Landing / November 18

Mariners Acquire RHP Alex Hoppe from Boston Red Sox

In a minor trade this afternoon, the Seattle Mariners acquired fireballing righthander Alex Hoppe from the Red Sox in exchange for minor league catcher Luke Heyman.

MLB News / Fastball on SI / November 18

Mariners Found Hidden Gem In Trade For 3-Year Red Sox Farmhand

Tuesday was an important day around Major League Baseball, and the Seattle Mariners made an interesting swap on their pitching staff. Eligible prospects had to be placed on their teams' 40-man rosters by Tuesday afternoon to be safe from the Rule 5 Draft, which takes place during next month's winter meetings.

Seattle Mariners News / Lookout Landing / November 18

Mariners Leave Prospects Unprotected Ahead of 40-Man Roster Deadline

As the deadline to protect minor leaguers from the Rule 5 draft came and went, the Seattle Mariners chose to leave everyone exposed, instead banking on their players not getting selected by other teams.

Josh Naylor News / MLB on ClutchPoints / November 18

Josh Naylor reveals why he inked 5-year contract with Mariners

As the Seattle Mariners signed slugger Josh Naylor to a contract extension, it showed the commitment the team has to the player after trading for him at the trade deadline last season.

George Kirby News / Athlon Sports / November 17

Mariners' George Kirby Announces Personal News

The Seattle Mariners fell just one win short of reaching the World Series for the first time in franchise history this year. Although Seattle came up short, the future remains bright, especially in the starting rotation, which is one of the best in MLB.

Seattle Mariners 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.

What does Seattle have in store for longtime top prospect Harry Ford?

Marcus Stroman could be a bargain

Why OF Kyle Tucker would be a great fit with the Blue Jays

Potential landing spots for Tatsuya Imai

...and for Framber Valdez

Seattle Mariners News / MLB Trade Rumors / November 16

What do Mariners have in store for longtime top prospect Harry Ford?

With Mitch Garver headed into the open market, the Mariners have a hole to fill on their roster without a clear backup for Cal Raleigh behind the plate.

Report: Mariners to make first major signing of offseason

Awesome MLB players from the 90s you probably forgot about

The '2025 MLB All-Star Starters' quiz

Cal Raleigh News / MLB on ClutchPoints / November 15

Mariners catcher Cal Raleigh reveals Seattle’s clubhouse MVP

Seattle Mariners superstar catcher and 2025 AL MVP runner-up Cal Raleigh opened up about who brought the most energy to the clubhouse during a memorable 2025 season — one that saw Seattle come just a game short of its first World Series appearance in franchise history.