Seattle Mariners: Breaking News, Rumors & Highlights

Mariners rumors: The obstacles standing in way of Luis Castillo trade

The Seattle Mariners were expected to be a World Series contender before the season. It seemed as if the ball club was going to run away with the American League West.

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The Quiz of the Day

Mariners Get the Worst Possible Opponent for Their Final Home Series of 2027

The Mariners’ 2027 schedule has plenty of good material. Boston comes to T-Mobile Park for Opening Day. The Dodgers visit early next season in May. The Vedder Cup kicks off in July, and we won’t have to wait long for the finale.

Jerry Dipoto News / Field Level Media / July 16

Mariners see reasons for optimism heading into series against Giants

Leave it to Jerry Dipoto to look on the bright side. "If the season ended today, somehow, magically, we're in the playoffs," said Dipoto, the Seattle Mariners' president of baseball operations.

Harry Ford News / Seattle Mariners on SI / July 16

Harry Ford Promotion Changes Nothing About the Mariners’ José A. Ferrer Trade

Harry Ford is finally getting the opportunity the Mariners couldn't realistically give him. The Washington Nationals are expected to promote him after the All-Star break, creating another round of discourse about whether Seattle will regret trading its former first-round pick.

Cody Bellinger News / Yardbarker Quizzes

The 'MLB All-Star Game MVPs' quiz

MLB began awarding the All-Star Game MVP Award during the 1962 season. How many of the MVPs since then can you name in eight minutes?

The 'National League MVPs' quiz

The 'MLB Home Run Derby winners' quiz

The 'MLB All-Star Game managers' quiz

Seattle Mariners News / Lookout Landing / July 16

The Mariners 2027 regular season schedule is here

MLB has released the 2027 regular season schedule for all 30 teams, which means the Seattle Mariners should have all their games slated for their next campaign.

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.

Seattle Mariners News / MLB on ClutchPoints / July 16

Predicting Mariners’ biggest move before MLB trade deadline

The Seattle Mariners have built one of the deepest starting rotations in baseball, and that strength could ultimately lead them to make one of the most surprising moves before the MLB trade deadline.

Chase Burns News / Seattle Mariners on SI / July 16

Ranking the Mariners Pitchers Who Could Follow the Reds’ Chase Burns Extension Blueprint

The Cincinnati Reds just handed the Mariners a reason to start thinking seriously about what the future of their pitching staff looks like. Per Jon Morosi, they agreed to a seven-year, $105 million extension with Chase Burns, setting a record for the largest guarantee ever given to a pitcher with fewer than four years of major-league service.

Brendan Donovan News / MLB on ClutchPoints / July 16

Mariners’ Brendan Donovan gets key injury update before second half of season

Seattle Mariners infielder Brendan Donovan is working his way back from a groin injury. Donovan, who was acquired by Seattle from the St. Louis Cardinals during the offseason, has missed almost two months due to the injury.

Seattle Mariners News / Seattle Mariners on SI / July 15

3 Teams the Mariners Should Be Negotiating With at the MLB Trade Deadline

The Mariners don’t need to spend the next few weeks refreshing the rosters of baseball’s worst teams and hoping to find a miracle worker buried beneath years of club control.

Kade Anderson News / Seattle Mariners on SI / July 14

Kade Anderson Sends Clear Message About Potential Mariners Call-Up

Kade Anderson knows exactly what Mariners fans are thinking. He hears the chatter. Seattle is trying to stay in the postseason race. The bullpen has dealt with injuries and enough moving pieces to make every dominant Anderson start feel like an invitation.

Seattle Mariners News / Seattle Mariners on SI / July 14

Mariners Prospect Michael Arroyo Is Separating Himself From Lazaro Montes

Michael Arroyo and Lazaro Montes arrived in Triple-A at the same time, but they haven’t arrived at the same place developmentally. Six games are not enough to shake up the prospect rankings or demand a major league promotion.

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.

Ken Griffey News / Kicks on SI / July 14

Nike Restocked Ken Griffey Jr.'s Sneakers for the MLB All-Star Game

The 2026 MLB All-Star Game is tonight, but it is a retired baseball player who continues to have the largest influence in the sneaker world. Seattle Mariners legend Ken Griffey Jr.'s Nike sneakers recently sold out in a special-edition colorway celebrating HBCU players.

Randy Arozarena News / Seattle Mariners on SI / July 13

Randy Arozarena Has Become the Mariners’ Version of Marvel’s Sentry

Okay, give this a chance. Promise that it’ll make sense. Watching Randy Arozarena play baseball has some parallels to Marvel’s comic book character Sentry.

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

The 'MLB All-Star Game MVPs' quiz

The 'MLB Home Run Derby winners' quiz

The 'MLB All-Star starting pitchers' quiz

The 'NBA blocks champions' quiz

Seattle Mariners News / Inside The Diamonds / July 13

Seattle Mariners Sign First-Round Pick

The Seattle Mariners drafted third baseman Ace Reese with the 24th overall pick in Saturday’s draft. Today, they signed him for $3.5 million. The 24th overall pick has a $3,818,700 slot value.

Seattle Mariners News / Seattle Mariners on SI / July 13

Why NIL Pushed the Mariners Toward College Players in the 2026 MLB Draft

If you were keeping tabs on the Mariners’ 2026 MLB Draft, you would’ve noticed the absence of high school talent on their draft board. Apparently, it was entirely intentional.

Julio Rodriguez News / MLB on ClutchPoints / July 13

Mariners’ Julio Rodriguez receives encouraging injury update before All-Star break

The Seattle Mariners placed Julio Rodriguez on the 7-day IL in early July after he suffered a concussion in the 1-0 win over the Los Angeles Angels on July 2.

MLB News / Field Level Media / July 12

Mariners beat Rays, avoid winless stay in Florida

Weston Wilson and Randy Arozarena each went deep in Seattle's four-run fourth inning Sunday afternoon, and the Mariners salvaged one win on their six-game Florida road trip by defeating the Tampa Bay Rays 8-2 in St.

Emerson Hancock News / Field Level Media / July 12

Mariners starter Emerson Hancock leaves with hand injury

Seattle Mariners right-hander Emerson Hancock left Sunday's game against the Tampa Bay Rays in the second inning after suffering an injury to his pitching hand.

Seattle Mariners News / Athlon Sports / July 12

Mariners Injury Updates: When Will Julio Rodriguez, Brendan Donovan Return?

The Seattle Mariners remain optimistic about the recoveries of Julio Rodriguez and Brendan Donovan, though neither player is expected back immediately after the All-Star break. Manager Dan Wilson said Rodriguez continues progressing through concussion protocol in Seattle, while Donovan is still working toward the start of a rehab assignment.

Seattle Mariners News / 5 GOATs / July 12

Seattle Mariners select Tennessee 3B Henry Ford in 2026 MLB Draft

Tennessee third baseman Henry Ford was selected by the Mariners with the No. 191 overall pick in the sixth round of the 2026 MLB Draft. After spending his first two collegiate seasons at Virginia, Ford transferred to the University of Tennessee for his junior campaign.

Brendan Donovan News / Athlon Sports / July 8

Mariners Receive Brendan Donovan News After 44 Straight Missed Games

The Seattle Mariners have stumbled so far in the 2026 MLB season. Heading into play Wednesday they are 47-45, good enough for first place in a weak American League West.

Stuart Fairchild News / MLB Trade Rumors / July 8

Mariners Sign Stuart Fairchild To Minor League Deal

The Mariners added outfielder Stuart Fairchild on a minor league contract after he rejected an outright assignment with the Guardians earlier this week and instead opted for free agency.

Cal Raleigh News / Yardbarker / July 4

Big Dumper to Big Slumper: Is Mariners' Cal Raleigh a one-hit wonder?

Widely known as the ''Big Dumper'' who crushed a career-high 60 home runs and was the 2025 Home Run Derby champion, Cal Raleigh has significantly underperformed this season. Is he a one-hit wonder?

Comparing the struggles of Vladimir Guerrero Jr. and Cal Raleigh in 2026

Five MLB players in the AL who deserve contract extensions

Dodgers hit with alarming Shohei Ohtani prediction

Mets' Steve Cohen makes big admission, promise amid woeful season

MLB News / Yardbarker / July 3

Mariners' Randy Arozarena had the worst ABS challenge game of the season

Seattle Mariners outfielder Randy Arozarena did not have a very productive first at-bat on Friday night against the Toronto Blue Jays.

Cubs on wrong side of history after blowout loss to Cardinals

Blue Jays' Kazuma Okamoto earns June AL Rookie of the Month award

Why Spencer Miles fits the Blue Jays' 2027 rotation picture

Five MLB players in the AL who deserve contract extensions

Seattle Mariners News / MLB Trade Rumors / July 3

Mariners Place Julio Rodríguez On Concussion IL

The Mariners announced that outfielder Julio Rodríguez has been placed on the seven-day concussion injured list. Infielder/outfielder Miles Mastrobuoni has been selected to take his place on the roster.