Seattle Mariners: Breaking News, Rumors & Highlights

Mariners Could Waste Emerson Hancock’s Breakout With Bullpen Return

Emerson Hancock spent two seasons living as the Mariners’ emergency kit. He finally cracked that label in 2026. The Mariners should be careful about stuffing him back inside that box because one awkward play wrecked his September. Hancock has made 25 starts with a 3.57 ERA, 1.14 WHIP and 126 strikeouts across 138 2/3 innings.

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The Quiz of the Day

Mariners' Michael Arroyo Checks Off Several MLB Firsts in Big Day at Plate

Seattle Mariners prospect Michael Arroyo is only three games into his first stint in the big leagues. But in his third MLB game, the 21-year-old easily had his best offensive performance yet in the majors.

Bryce Miller News / Lookout Landing / September 13

Bryce Miller’s identity crisis

Full disclosure: Bryce Miller is one of my favorite Mariners, both on the field and off. In interviews, he’s funny, thoughtful, reflective, insightful; as a player, I’ve enjoyed studying his emerging and evolving pitch arsenal and writing about it.

Taylor Ward News / Lookout Landing / September 13

The plot against Taylor Ward

The Mariners traded for one of the league’s streakiest player, and then he took a big slump. I wrote about Randy Arozarena a few months ago. I’d often referred to him as a streaky hitter and wanted to know how much to hedge against his red-hot start to 2026.

Houston Astros News / Yardbarker Quizzes

The 'MLB Playoff hits leaders' quiz

How many of the 30 MLB players with at least 70 hits in their postseason career can you name in five minutes?

The 'Active multiple .300 seasons' quiz

The 'Most 200-hit MLB seasons' quiz

The 'Last MVP by MLB team 'quiz

Cole Young News / Seattle Mariners on SI / September 13

Mariners’ Cole Young Is No AL Gold Glove Lock as Defensive Metrics Clash

Acronym salesmen have to love Gold Glove debates. DRS can tell you one story while OAA says another. Cole Young’s 2026 résumé is living in the middle of it all.

MLB News / Yardbarker

Every first-overall MLB draft pick from the 21st century

The MLB Draft doesn’t get the same attention as the NFL Draft…or the NBA Draft…or even the NHL Draft. There’s the element of a stay in a farm system, the general lack of immediate impact for MLB draft picks, and the fact that it’s tougher for one MLB player to turn a franchise’s fortunes around.

MLB News / Yardbarker / September 12

White Sox cannot rely on Luis Castillo with a game in doubt for rest of the season

Luis Castillo allowed three earned runs on four hits and three walks with two strikeouts in 2.2 innings on Saturday night in the Chicago White Sox's 6-5 win over the St. Louis Cardinals.

White Sox's young core has been vital to team's turnaround

The 'MLB active wins leaders' quiz

Josh Naylor News / Seattle Mariners on SI / September 11

Josh Naylor’s Power Collapse Leaves Mariners With a Four-Year Lineup Problem

If anyone is counting, Josh Naylor has 142 hits. It leads the team, and should sound impressive until we ask the question that actually matters. What did those hits actually do for the Mariners?

Stuart Fairchild News / MLB Trade Rumors / September 11

Mariners Outright Stuart Fairchild

The Mariners announced that outfielder Stuart Fairchild has cleared waivers and been outrighted to Triple-A Tacoma. He had been designated for assignment earlier this week.

Michael Arroyo News / Seattle Mariners on SI / September 11

Mariners Called Up Michael Arroyo for an MLB Audition They Refuse to Hold

The Mariners spent most of August explaining why Michael Arroyo didn’t have a clean place to play at the major-league level. Four lineup cards into his first major-league stay, that uncertainty still seems to be the plan.

MLB News / Field Level Media / September 10

Mariners rally to spoil deGrom's gem, beat Rangers

Julio Rodriguez hit a go-ahead, three-run homer in the bottom of the seventh inning as the Seattle Mariners defeated the visiting Texas Rangers 4-3 on Thursday afternoon, taking two of three games from their American League West rivals.

Logan Gilbert News / Seattle Mariners on SI / September 10

Mariners’ Logan Gilbert Trade Case Makes Sense but Still Gets It Wrong

Logan Gilbert landed on MLB.com’s early list of offseason trade candidates, and it’s not hard to find the reasoning. Paul Casella laid out the case. Gilbert is one year from free agency.

Athletics News / Yardbarker

The 20 greatest MLB teams to never win the World Series

Even the most successful regular-season teams in Major League Baseball have failed to win it all. Here's our list of 20 such clubs that fall into that category.

Seattle Mariners News / MLB on ClutchPoints / September 10

Mariners rumors: The starter Seattle may trade this offseason after disappointing campaign

Logan Gilbert has surfaced as a potential Seattle Mariners trade candidate this offseason as a disappointing 2026 campaign nears its end, barring a remarkable late-season playoff push.

MLB News / Field Level Media / September 10

Mariners riding youth movement into finale vs. Rangers

With the Seattle Mariners' postseason hopes nearly dashed -- they have a 5.4% chance of making it, according to FanGraphs -- they've at least enjoyed a glimpse into the future the past two days.

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

The 'Women's U.S. Open champions' quiz

The '4,500-yard, 15-INT NFL seasons' quiz

The 'Most 10-TD catch NFL seasons' quiz

The 'NFL's active passing-leaders' quiz

Stuart Fairchild News / MLB Trade Rumors / September 8

Mariners Designate Stuart Fairchild For Assignment

The Mariners announced that outfielder Víctor Robles and left-hander Hoby Milner have both been reinstated from the family medical emergency list. In corresponding moves, right-hander Troy Taylor has been optioned to Triple-A Tacoma and outfielder Stuart Fairchild has been designated for assignment.

Seattle Mariners News / Viral Sports News / September 7

Former Seattle Mariners Infielder Has Reportedly Died

Former Seattle Mariners first baseman Pat Putnam, a productive power hitter during two seasons in the Pacific Northwest, has died at age 72. Putnam died Aug.

Matt Brash News / Field Level Media / September 6

Mariners' Matt Brash out for season with lat inflammation

Seattle Mariners reliever Matt Brash has been shut down for the rest of the season after an MRI showed continued inflammation in his right lat. Brash, 28, first landed on the 15-day injured list on May 1 with inflammation in his right lat.

Seattle Mariners News / Viral Sports News / September 5

Mariners’ Playoff Push Takes Hit With Season-Ending Update

Seattle Mariners reliever Matt Brash will not pitch again this season after an MRI confirmed lingering inflammation in his right lat muscle. General manager Justin Hollander made the announcement Friday before the Mariners faced the Athletics at T-Mobile Park.

Seattle Mariners News / EssentiallySports / September 5

MLB Team Called the 'Most Disappointing Team' in a Blunt Dig by Analyst

The Seattle Mariners have disappointed generations of fans when it comes to the World Series. Since its founding in 1977, the team has never played in a Fall Classic.

Seattle Mariners News / Athlon Sports / September 4

Julio Rodriguez Makes MLB History in 5th Mariners Season

Seattle Mariners center fielder Julio Rodríguez added another historic accomplishment to his young MLB career Thursday night, becoming the first player in Major League Baseball history to begin his career with five consecutive 20-home-run, 20-stolen-base seasons.

Seattle Mariners News / Larry Brown Sports / September 2

Mariners are not expected to bring back 1 All-Star

Cubs set multiple records with nine-HR outburst vs. Brewers

Comeback Story: Embattled Red Sox shortstop sparks late rally in walk-off win over Mariners

White Sox's Tristan Peters makes MLB history with HR in fifth straight game

The '2023 MLB home run leaders' quiz

Bryce Miller News / Yardbarker / August 28

Mariners move starter Bryce Miller to bullpen amid struggles

Miller's move to the bullpen comes as no surprise.

Blue Jays bid to silence boos in home clash vs. Mariners

Kyle Schwarber hits MLB-leading 40th homer as Phillies blank Mariners

The 'Switch-hitter 35-HR seasons' quiz

Seattle Mariners News / Yardbarker / August 26

Cal Raleigh joins Mariners legends in record books amid rough season

Cal Raleigh joins Ken Griffey Jr., other Mariners legends in record books amid rough season

A season removed from putting together one of the most historic seasons in MLB history, Cal Raleigh has managed to find new special moments in a disappointing 2026.

Cal Raleigh's three-home-run game could be exactly what Mariners need

Mariners put up a hilarious video board message after Cal Raleigh’s 3-home run night

The 'MLB HR leaders since 1997' quiz

Cal Raleigh News / Yardbarker / August 25