Seattle Mariners: Breaking News, Rumors & Highlights

Fantasy Baseball 2026: The Most Important Number in Colt Emerson’s Minor League File

Let's get the curtain call out of the way. Colt Emerson debuted with the Seattle Mariners on May 17 at age 20, became the youngest player in the organization since Felix Hernandez was a teenager causing problems in 2005, and arrived carrying the largest contract ever handed to a drafted player without a day of MLB service time.

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Mariners reinstate OF Victor Robles from injured list

The Seattle Mariners reinstated outfielder Victor Robles from the 10-day injured list on Friday. Outfielder/first baseman Connor Joe was optioned to Triple-A Tacoma in a corresponding transaction.

Felnin Celesten News / Seattle Mariners on SI / May 22

Mariners Prospect Felnin Celesten Is Making High-A Feel Like the Wrong Room

Felnin Celesten is turning the Mariners’ normal prospect patience into a more fascinating conversation. The Mariners can be patient and still admit the conversation has changed.

New York Yankees News / Yardbarker Quizzes

The 'ERA leaders since 2003' quiz

How many ERA leaders from both leagues since the 2003 season can you name in five minutes?

Randy Arozarena News / Seattle Mariners on SI / May 21

Randy Arozarena’s Contact Makeover Gives Mariners a Real Reason to Buy His Hot Start

Randy Arozarena’s season is giving us two different stories at the same time. The easy story says the Seattle Mariners’ best hitter is probably due for a correction.

MLB News / Yardbarker

The 25 greatest rookie seasons in MLB history

Not every all-timer has instant success at the next level. For many baseball players, it takes a few bumps in the road out of the gate before they ever reach stardom.

MLB News / Field Level Media / May 21

Mariners ride recent road momentum into opener against host Royals

Perhaps the most positive aspect of the Seattle Mariners, at the moment, is their play on the road. Looking to continue their recent success away from home on Friday night, the Mariners open a weekend set against a Kansas City Royals club that's struggled regardless of the location.

J.P. Crawford News / Seattle Mariners on SI / May 21

J.P. Crawford’s Loyalty to the Mariners Makes the Fan Criticism Look Short-Sighted

J.P. Crawford was scratched from Wednesday’s lineup because of lingering soreness in his right triceps after getting hit by pitches in that area on consecutive days, but he still went through early work at third base with Perry Hill before Seattle’s 5-4 win over Chicago.

Seattle Mariners News / Lookout Landing / May 21

The Mariners as things in or near my apartment: 2026

There’s been enough roster turnover since the last time we did this to warrant a new edition of the classic Jeff Sullivan bit. I love him so much, and it feels life-ruining when he’s bad.

Seattle Mariners News / Lookout Landing / May 21

Pressing Questions: Luis Castillo, Bryce Miller, and the Piggyback

For better, for worse, for discourse, we saw our first “piggyback” start Tuesday night. Bryce Miller, in his second appearance back from a stint on the IL, carried a no-hitter into the sixth inning versus the White Sox, looking much more 2024 than 2025.

Seattle Mariners News / Lookout Landing / May 21

Mariners News: J.P. Crawford, Colt Emerson, and José Berríos

Good morning everyone! The Mariners got a much-needed win against the White Sox yesterday, powering their way to a 5-4 series finale victory. The team has the day off today as they travel to Kansas City for a three-game weekend series.

Rob Refsnyder News / Seattle Mariners on SI / May 20

Mariners Fans May Be Stuck Waiting for the Rob Refsnyder Decision They Already Want

Rob Refsnyder has already cleared one very important Mariners veteran-bat hurdle. He lasted longer than Tommy La Stella. That won’t get anyone a plaque in Cooperstown, but it counts for something.

MLB News / Yardbarker

Which 20 players have hit four home runs in an MLB game?

The only two things rarer in modern-day baseball than the four-homer game is the Triple Crown and the unassisted triple play. The former is, of course, done over an entire season, while there's a large level of lucky in the unassisted triple play.

J.P. Crawford News / MLB Trade Rumors / May 20

J.P. Crawford Getting Work At Third Base

Mariners shortstop J.P. Crawford has been getting work at the hot corner and was taking grounders there prior to today’s game. Daniel Kramer of MLB.com was among those to report that the idea was actually brought up by Crawford, who approached manager Dan Wilson about the possibility this weekend.

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The 'ERA leaders since 2003' quiz

The '35-5-5 Conference Finals games' quiz

The 'NBA MVPs' quiz

The 'NBA steals-per-game leaders' quiz

Seattle Mariners News / Athlon Sports / May 20

Mariners' J.P. Crawford Scratched Late with Triceps Injury

The Seattle Mariners made a late change to their lineup on Wednesday, as shortstop J.P. Crawford felt some triceps soreness in pregame warmups. The injury likely stems from Crawford being hit on the right triceps by a pitch from the San Diego Padres' Lucas Giolito on Sunday night.

Luis Castillo News / Seattle Mariners on SI / May 20

Mariners Offensive Disaster Overshadowed Bryce Miller-Luis Castillo Piggyback Plan

Tuesday’s 2-1 loss to the White Sox is going to invite plenty of second-guessing. Most of it is fair. Dan Wilson sticking with Luis Castillo into the ninth inning deserves scrutiny.

Matt Brash News / Field Level Media / May 20

Mariners reinstate RHP Matt Brash from injured list

The Seattle Mariners reinstated right-hander Matt Brash from the injured list and optioned left-hander Robinson Ortiz to Triple-A Tacoma on Wednesday. Brash, 28, landed on the 15-day IL on May 1 with inflammation in his right lat.

Colt Emerson News / Yardbarker / May 19

Mariners rookie makes history with dramatic first career HR

Mariners rookie Colt Emerson makes history with dramatic first career HR

Emerson, whom the Mariners selected in the first round of the 2023 MLB Draft, now provides Seattle with another piece for both the present and the future.

Mariners to promote top prospect Colt Emerson

The 'Most home runs by a switch hitter' quiz

Seattle Mariners News / MLB Trade Rumors / May 18

Mariners Recall Robinson Ortiz, Select Brennen Davis

The Mariners announced several roster moves today. Infielder Patrick Wisdom has been reinstated from the 10-day injured list and left-hander Robinson Ortiz has been recalled from Triple-A.

MLB News / Yardbarker / May 20

The six most disappointing MLB players this season

With the MLB season a touch over 25% of the way complete, slow starts are no longer being looked at as nothing to worry about. Sluggish starts are beginning to turn into season long concerns, especially for some stellar players.

Mariners rookie Colt Emerson makes history with dramatic first career HR

Phillies accomplish rare feat not seen since 1951 Giants

Twins send former No. 1 pick to minors

Mets prospect Nick Morabito to wear unexpected uniform number

Mets will roll with all-rookie outfield after latest call-up

Seattle Mariners News / Just Baseball / May 18

Top Prospect Colt Emerson Debuts for Mariners

After placing third baseman Brendan Donovan on the 10-day injured list with a groin strain, the Seattle Mariners saw an opening for their top-ranked minor leaguer.

Seattle Mariners News / Fastball on SI / May 17

Mariners Promote MLB’s No. 6 Prospect to Help in AL West Race

The Seattle Mariners are calling up the No. 6 overall prospect in baseball. Right now, the Mariners are in third place in the American League West at 22-25.