Seattle Mariners: Breaking News, Rumors & Highlights

For M's Colt Emerson, the future is now against Guardians

Just three years after graduating from high school, Seattle Mariners shortstop Colt Emerson is playing in his home state of Ohio as a major leaguer for the first time.

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The Morning Bark

The Quiz of the Day

Mariners shuffle their bullpen pile & rotation/piggyback plans

The Seattle Mariners made a move in their shallow bullpen, optioning RHP Alex Hoppe to Triple-A Tacoma and recalling LHP Josh Simpson from the Rainiers.

Seattle Mariners News / Lookout Landing / June 27

First things worst – the Mariners’ trouble with the first pitch

The Seattle Mariners are struggling offensively. Yes, their team wRC+ is around league-average. Yes, they are finally running nearly their entire full healthy lineup out for the first time all season (save Bringo Dingo, may your groin heal in peace).

MLB News / Field Level Media / June 26

Mariners blow past Guardians late in low-scoring affair

J.P. Crawford drove in the go-ahead run in the seventh inning with an infield single and Julio Rodriguez added an RBI hit in the eighth, giving the visiting Seattle Mariners a 3-1 victory over the Cleveland Guardians on Friday night.

Corey Seager News / Yardbarker Quizzes

The 'MLB playoff HR leaders' quiz

In the history of MLB, 31 players have hit 13 or more home runs in the postseason over the course of their careers. How many can you name in six minutes?

The 'MLB active HR leaders' quiz

The 'Multiple 30/30 Club MLB seasons' quiz

The 'MLB all-time strikeout leaders' quiz

Logan Gilbert News / Seattle Mariners on SI / June 26

Mariners Probable Starters vs. Guardians, Logan Gilbert Becomes the Piggyback Flashpoint

The Mariners are walking into Cleveland with a series that feels like it could go either way. The Guardians are 42-39, good enough to respect but not exactly good enough to fear.

MLB News / Yardbarker

25 MLB players most likely to be traded by the deadline

The MLB Trade Deadline has been quieter in recent years, in part due to playoff expansion, but 2026 is shaping up to be a more exciting one with several big names.

Seattle Mariners News / Inside The Diamonds / June 26

Seattle Mariners Infield Prospect Hits for Cycle in Seven-Inning Game

The Seattle Mariners High-A affiliate, the Everett Aqua Sox, is facing the Eugene Emeralds, the affiliate of the San Francisco Giants. Last night in the first game of a doubleheader, the Mariners seventh ranked prospect and the 96th overall prospect, Felnin Celesten, hit for the cycle.

MLB News / Lookout Landing / June 25

Broadcast castaways, Mariners sunk in Pirates sweep 5-1

In a year of anniversarial festivity across the United States, a less rounded celebration will make its annual occurrence in just a month and change. The 105th anniversary of the first radio broadcast of a baseball game will occur on August 5th.

Miles Mastrobuoni News / MLB Trade Rumors / June 25

Mariners Outright Miles Mastrobuoni

The Mariners announced that infielder/outfielder Miles Mastrobuoni cleared waivers and has been outrighted to Triple-A Tacoma. He had been designated for assignment by Seattle last week.

MLB News / MLB on ClutchPoints / June 25

Mariners rumors: Analyst calls Aroldis Chapman, Luke Weaver ‘almost perfect fits’ for Seattle

With the Seattle Mariners preparing for the upcoming trade deadline, there are fans who are wondering who the team will target as a need for the ball club.

Seattle Mariners News / MLB on ClutchPoints / June 25

2 sneaky Mariners’ 2026 MLB trade deadline targets to chase

The Seattle Mariners should be aggressive before the August 3 MLB trade deadline, but aggression cannot mean turning a strong farm system into a clearance rack.

Athletics News / Yardbarker

25 MLB players who could be first-time All-Stars in 2026

Being named to the Midsummer Classic is one of the biggest honors for MLB players. These 25 players have a chance to make their first All-Star appearance in 2026 based on their first-half performances.

Bryan Woo News / Seattle Mariners on SI / June 25

Bryan Woo’s Search for Answers Is Becoming a Real Mariners Problem on the Road

Bryan Woo gave the Mariners and their fans a complicated postgame answer. One thing for certain, it didn’t include any spin, excuses, or fake confidence.

Seattle Mariners News / Lookout Landing / June 25

Mariners Draft Profile: RHP Logan Reddemann

Joining arguably the best roster in college baseball this past season via transfer, Logan Reddemann, a 6’3 righthander, immediately stepped into the role of “staff ace” for UCLA and found consistent success despite his mid-major roots.

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The 'Triple-Double leaders by team' quiz

The '2nd-overall NBA Draft picks' quiz

The 'Multi-time NBA MVPs' quiz

The 'No.1 NBA Draft picks' quiz

Bryce Miller News / Field Level Media / June 25

Mariners' Bryce Miller hopes for longer leash in finale vs. Pirates

Bryce Miller won't have to look over his shoulder on Thursday afternoon. The Seattle Mariners' right-hander will start the finale of a three-game interleague series at Pittsburgh, and he won't have teammate Luis Castillo warming up in the bullpen in the fifth inning.

MLB News / Seattle Mariners on SI / June 24

Red Sox Trade Rumors Reveal the Real Problem With the Mariners’ Deadline Plans

The Mariners are going to continue to show up in trade rumors. That’s the expectation, especially with a team that started the season off with high odds for a World Series appearance.

Randy Arozarena News / Athlon Sports / June 23

Mariners Make Randy Arozarena Announcement

The Seattle Mariners got good news on Tuesday. The Mariners announced they have reinstated left fielder Randy Arozarena from the 10-day injured list and optioned infielder/outfielder Connor Joe to Triple-A Tacoma.

MLB News / Inside The Rink / June 23

ECHL: Maine Mariners Announce 2025-26 Season-Ending Roster

Yesterday, the Maine Mariners sent in their season-ending roster. They were announced this morning. Season-Ending Rosters are limited to 20 players. Season-Ending Rosters cannot include any players who did not sign an ECHL contract in 2025-26.

Seattle Mariners News / Athlon Sports / June 21

Mariners Outfielder Exits Game With Injury

After providing two of the team's three RBIs and turning a crucial outfield double play, Seattle Mariners outfielder Dominic Canzone exited Sunday's game in the sixth inning.

Curtis Washington Jr. News / MLB Trade Rumors / June 20

Mariners Outright Curtis Washington Jr.

The Mariners announced that outfielder Curtis Washington Jr. was outrighted to A-level Everett after clearing waivers. There wasn’t any public indication that Washington had also been designated for assignment when he was optioned back to Everett earlier this week, but the outright now opens up a spot on Seattle’s 40-man roster.

Luis Arraez News / Yardbarker / June 19

Why Mariners should target Luis Arraez before trade deadline

Why Mariners should target Giants contact king Luis Arraez before 2026 MLB trade deadline

The Seattle Mariners do not need Luis Arraez because he fixes everything. They should target him because he attacks the offensive flaw that can make their lineup so frustrating.

Three potential landing spots for Giants' Luis Arraez

Yankees highlight list of potential Seiya Suzuki trade landing spots

Four players Red Sox should move and one they should keep at trade deadline

The 'National League batting champs' quiz

Julio Rodriguez News / Athlon Sports / June 18

Julio Rodriguez News Emerges After Removal From Mariners Lineup

The Seattle Mariners are going to be without center fielder Julio Rodriguez for the first time all season. The 25-year-old Dominican superstar suffered

Seattle Mariners News / Total Pro Sports / June 17

Who Is Curtis Washington Jr.? The Mariners Outfielder Coming Straight From High-A To The Big Leagues

Curtis Washington Jr.’s path to the majors wasn’t supposed to look like this. Most prospects grind through Double-A and Triple-A before getting the call.

Seattle Mariners News / Total Pro Sports / June 17

What Happened To Randy Arazorena? Latest Update On The Mariners Star

Randy Arozarena delivered a strong 2025 campaign in his first full season for the Seattle Mariners. Despite the team nearly clinching the American League pennant, the 31-year-old outfielder suffered a big slump during the postseason.

Seattle Mariners News / MLB Trade Rumors / June 16

Mariners place Randy Arozarena on injured list

8:14pm: Seattle has officially announced all three moves: Arozarena’s retroactive IL placement, Washington’s selection, and Wilson’s transfer to the 60-day injured list.

Cal Raleigh News / Yardbarker Quizzes

The 'MLB HR leaders since 1997' quiz

How many MLB home run leaders since 1997 can you name in five minutes?

Cal Raleigh News / Larry Brown Sports / June 16

Mariners get huge Cal Raleigh injury update

The Seattle Mariners have been without catcher Raleigh for a month.

James Wood, Miles Mikolas star as Nats pound Mariners

Mariners SP Emerson Hancock is demonstrating why he's All-Star material

The 'RBI leaders since 2000' quiz

Cole Young News / Stadium Rant / June 12

Seattle Mariners’ Energetic Young Core, Pitching Fueling 2026 Season

The Seattle Mariners entered the 2026 season facing familiar questions. After several years of building around a talented young core, the organization needed to prove it could consistently compete in a crowded American League landscape.