Seattle Mariners: Breaking News, Rumors & Highlights

J.P. Crawford News / Field Level Media / September 2

J.P. Crawford helps Mariners sail past Red Sox

The visiting Seattle Mariners rode a pair of four-run innings to an 8-3 win over the Boston Red Sox in the rubber game of their three-game series on Wednesday.

Simeon Woods Richardson News / Viral Sports News / September 2

Mariners Acquire 5-Year MLB Veteran in Post-Deadline Move

The Seattle Mariners have signed right-hander Simeon Woods Richardson, adding a pitcher with five seasons of major-league experience and a track record as a mid-rotation starter.

Mickey Gasper News / Seattle Mariners on SI / September 2

Mariners News & Notes: Lázaro Montes’ Historic MLB Debut, Arozarena Stays Hot and Mickey Gasper’s Power Surge

Look, saying it’s been a rough season for the Mariners would be an understatement. Their win over the Red Sox on Sept. 1 didn’t save their season. Honestly, they almost fumbled their 9-6 win at Fenway Park. But the victory showed us what this lineup can look like when a premium prospect arrives without fear.

Alex Bregman News / Yardbarker Quizzes

The 'Multiple 3-HR games in a season' quiz

How many of the MLB players to hit three home runs in a single game multiple times in the same season can you name in five minutes?

The 'MLB 30/30 Club members' quiz

The 'Last cycle by MLB team' quiz

The '2025 MLB home run leaders' quiz

Lazaro Montes News / Athlon Sports / September 2

Lazaro Montes Shines in MLB Debut With Mariners

Lazaro Montes made his highly anticipated MLB debut for the Seattle Mariners on Tuesday against the Boston Red Sox. And it’s safe to say that he made a great first impression.

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 / Field Level Media / September 2

Mariners swinging loud bats heading into finale vs. Red Sox

Hanging on the fringe of the American League playoff race, the Seattle Mariners will look for a series win when they meet the host Boston Red Sox on Wednesday afternoon.

Lazaro Montes News / Minor League Baseball on SI / September 2

Lazaro Montes Shows Exactly What He Can Add to Mariners' Lineup in MLB Debut

Seattle Mariners outfield prospect Lazaro Montes made a strong first impression in his MLB debut. Montes, Seattle's No. 5 prospect on MLB Pipeline, went 2-for-4 with a walk, two RBIs, and two runs scored in the Mariners' 9-6 victory over the Boston Red Sox on Tuesday.

Seattle Mariners News / Lookout Landing / September 1

Mariners’ Cuban Connection delivers 9-6 win against Red Sox

Mantua, Cuba, is a small fishing village on the northwestern coast of the island; legend says it was founded by shipwrecked Italian sailors in the early 1600s.

Lazaro Montes News / Field Level Media / September 1

Lazaro Montes goes deep in debut as Mariners trounce Red Sox

Lazaro Montes homered in his major league debut for the visiting Seattle Mariners, who scored in each of the first five innings en route to a 9-6 win over the Boston Red Sox on Tuesday night.

Cal Raleigh News / Lindy's Sports / September 1

The Mariners are failing Cal Raleigh

The Seattle Mariners are unlucky (read: cursed). The 2026 Mariners have proved this with countless late-inning chokes, especially as of late. However, this year’s team is guilty of something far more heinous: failing resurgent talisman catcher Cal Raleigh, in more ways than one.

Seattle Mariners News / Seattle Mariners on SI / September 1

Mariners’ Lázaro Montes Makes MLB Debut vs. Red Sox Amid Playoff Desperation

The Mariners have reached the point of the season where their last hope arrives wearing No. 99 and carrying only 44 games of Triple-A experience. Lázaro Montes is in Seattle’s lineup today at Fenway Park, batting seventh and serving as the DH against the Red Sox.

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 / Viral Sports News / September 1

Seattle Mariners Part Ways With Long-Time MLB Veteran

The Seattle Mariners designated outfielder and first baseman Connor Joe for assignment on Tuesday, opening a 40-man roster spot as the club made its September additions.

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

The 'Multiple 3-HR games in a season' quiz

The 'Season sack leaders by team' quiz

The 'Last 3-HR game by MLB team' quiz

The 'FBS college football nicknames' quiz

Seattle Mariners News / MLB Trade Rumors / September 1

Mariners Sign Hoby Milner; Connor Joe, Nolan Kingham Designated For Assignment

The Mariners announced their slate of September call-up transactions today, including the previously reported promotion of top outfield prospect Lazaro Montes.

Lazaro Montes News / Just Baseball / September 1

Mariners to Promote Top Prospect Lazaro Montes for MLB Debut

Originally brought to the Seattle Mariners as an international free agent signing back in 2022, Lazaro Montes has done absolutely nothing but mash since the moment his professional career began.

Cal Raleigh News / Yardbarker / September 1

Mariners' Cal Raleigh joins elite company with latest milestone HR

Trying to end a disappointing season the right way, Seattle Mariners catcher Cal Raleigh has been hot as of late and has made more history on his career resume.

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

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

Cooper Criswell News / MLB Trade Rumors / August 31

Mariners Reinstate Cooper Criswell From 60-Day Injured List

The Mariners announced that right-hander Cooper Criswell has been reinstated from the 60-day injured list. He will take the active roster spot of right-hander Nick Davila, who has been placed on the 15-day injured list with an SC joint sprain.

Max Scherzer News / Larry Brown Sports / August 31

Max Scherzer shuts down a reporter’s question after his start against the Mariners

Max Scherzer was direct when the Toronto Blue Jays pitcher was asked if his impressive start Sunday against the Seattle Mariners was validating. “No, because I knew,” the future Baseball Hall of Famer said in response to the question, via Sportsnet.

MLB News / TWSN / August 31

3.09 ERA Pitcher Listed as Starter in Seattle Mariners vs Boston Red Sox August 31st Matchup

August 31st is going to be a game that the Seattle Mariners are going to want to tune in for, but not because of the pitching matchup. The reason for that is that Lazaro Montes is now called up.

Seattle Mariners News / Athlon Sports / August 30

Mariners Lose Starter to IL in Pivotal Stretch

The Seattle Mariners will be without a key starting pitcher for at least a portion of the final stretch of the regular season. The Mariners placed right-hander Emerson Hancock on the 15-day injured list with a left adductor strain, retroactive to August 29.

Seattle Mariners News / MyMMANews.com / August 29

UFC Shanghai Results – Song Yadong KO’s Umar Nurmagomedov

UFC Shanghai results from Oriental Sports Center in Shanghai, China. The Aug. 29 main event pairs Umar Nurmagomedov against Song Yadong in a battle of bantamweight contenders.

Seattle Mariners 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