Seattle Mariners: Breaking News, Rumors & Highlights

Dominic Canzone News / Lookout Landing / November 24

Dom can, he must

You can pitch to Dominic Canzone, but you best not miss. One in five pitches a lefty batter sees is over an interior square of the strike zone that stretches from middle-middle to up-and-in.

Jorge Polanco News / Fastball on SI / November 24

Mariners Facing Unexpected Competition For Jorge Polanco: Report

The Seattle Mariners already have retained one of their high-end free agents this offseason in Josh Naylor. But, what about another one? Infielder Jorge Polanco is available in free agency right now after declining his option for the 2026 season with the organization.

Seattle Mariners News / Fastball on SI / November 24

Mariners 20-Year-Old Rising Star Shaping Seattle's Offseason Decisions: Report

As the Seattle Mariners try to build their perfect opening day roster, there's a wild card in the mix. It's rare for a 20-year-old to work his way into the opening day lineup, but the Mariners think so highly of their consensus No.

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

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 / Fastball on SI / November 23

Mariners Insider Reveals Why Top Japanese Sluggers Don't Fit In Seattle

As the Seattle Mariners continue to search for offensive improvements, it's tempting to gravitate toward the two Japanese sluggers on the market. The Mariners were home, of course, to Major League Baseball's finest Japanese position player of all time (at least until Shohei Ohtani came around) in Ichiro Suzuki.

Jorge Polanco News / Fastball on SI / November 23

Mariners' Projected Jorge Polanco Free Agency Price Revealed By Insider

After securing a big contract to lock up first baseman Josh Naylor, most indications have been that the Seattle Mariners are shifting their attention to Jorge Polanco.

Seattle Mariners News / Fastball on SI / November 22

Mariners Trim Roster, Send 3 Middling Pitchers To Free Agency

Ahead of Friday's non-tender deadline, the Seattle Mariners thinned out their pitching staff. Earlier in the week, the Mariners had already designated left-hander Tayler Saucedo to make room for trade acquisition Alex Hoppe, formerly of the Boston Red Sox organization.

Seattle Mariners News / Lookout Landing / November 21

Mariners non-tender three relievers ahead of Friday’s deadline

The Seattle Mariners announced Friday that they have tendered contracts to 31 of their 34 eligible players. The three players not tendered contract offers are RHP Gregory Santos, RHP Trent Thornton, and LHP Tayler Saucedo, meaning each player is now a free agent.

Seattle Mariners News / Fastball on SI / November 21

Mariners Make Crucial Free-Agency Decision That Will Shape Offseason

The Seattle Mariners had an impressive 2025 season, winning 90 games, an American League West title and advancing all the way to the ALCS, where they took the Toronto Blue Jays the full seven games.

Troy Taylor News / Lookout Landing / November 21

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.

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.

MLB News / Fastball on SI / November 21

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.

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.

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

The '2025 NFL draft QB class' quiz

The 'Active 300-passing-yard game leaders' quiz

The '2022 NFL Week 1 starting QBs' quiz

The 'NFL single-game completions leaders' quiz

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

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.

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 / 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.

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.

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.

Robinson Ortiz News / MLB Trade Rumors / November 16

Mariners acquire lefty Robinson Ortiz from Dodgers

The Mariners and Dodgers each announced that Seattle has acquired left-hander Robinson Ortiz in exchange for minor league right-hander Tyler Gough.

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

Harry Ford 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

MLB News / Yardbarker / November 14