PEORIA, Ariz. -- For Kade Anderson, Friday night was about the finish. The Mariners’ wunderkind left-hander made what could be his final start of an impressive Cactus League slate, covering three innings in a 10-7 loss to the Dodgers and working through a mid-game adjustment that helped salvage the outing.

PEORIA, Ariz. -- By now, virtually everyone following the sport has seen the clips, heard the player reactions -- and more so, had a take -- on the awkward exchange between Cal Raleigh and Randy Arozarena at the World Baseball Classic on Monday night. The not-so-ideal part for the Mariners

PEORIA, Ariz. -- It won’t quite be show-and-go for the Mariners’ eight players at the World Baseball Classic who are expected to be on the club’s Opening Day roster. But it will still be a tight turnaround by the time they all return for the final days of Spring Training

PEORIA, Ariz. -- Bryce Miller’s first full-effort bullpen session since suffering left side oblique inflammation was cut short before it got going on Wednesday afternoon, making an already tight window to break camp on the Opening Day roster even tighter. Miller threw a handful of higher-intensity warmup pitches, then took

PEORIA, Ariz. -- If there was any drama brewing between Cal Raleigh and Randy Arozarena at the World Baseball Classic, last year's AL MVP runner-up took steps to defuse it on Tuesday afternoon. "I hate that this is a thing,” Raleigh said via FaceTime with three Mariners beat reporters. “I

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MARYVALE, Ariz. -- You had to really be paying attention to see it, and even then, peering closely. You also had to be there, because the game wasn’t televised. On Sunday, it might’ve looked like George Kirby was adjusting his belt throughout his second Cactus League start vs. the Brewers.

PEORIA, Ariz. -- Still too early to talk Opening Day starter in Mariners camp? For manager Dan Wilson, who for the second straight year doesn’t have the most obvious choice, that’s a yes.

PEORIA, Ariz. -- Bryce Miller was in the middle of discussing his first mound session in 10 days when Justin Hollander passed by. “He’s fine!” the Mariners' general manager shouted good-naturedly.

PEORIA, Ariz. -- For a Mariners lineup that for the first time in years lacks notable voids, there might not be a player who can elevate the group’s 2026 floor more than Cole Young. Sound lofty for a 22-year-old entering his first full season? Maybe. But does that assertion come

SURPRISE, Ariz. -- The Mariners sure seem like they grow homegrown starting pitchers on trees, and Kade Anderson is quickly becoming the latest branch to grow. The No. 3 overall pick in last year’s MLB Draft was at it again in Friday afternoon’s 5-1 win against the Rangers -- in

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PEORIA, Ariz. -- After much success in its first two years, Spring Breakout is back in 2026, creating a showcase-type opportunity for the best and brightest faces of the future by pitting them against other prominent prospects from other organizations. And for the Mariners, who possess one of the sport’s

Baseball against the backdrop of one of the most beautiful summer regions in the country has made T-Mobile Park a top-tier coveted stop among the 30 ballparks across MLB. Nestled in the SoDo neighborhood just south of downtown Seattle, the home of the Mariners opened in July of 1999. But

PEORIA, Ariz. -- The Mariners have made quite a few subtractions in volume to their prospect pool over the past 12 months, notably as chips for their bolder trades to bolster the Major League roster.

PEORIA, Ariz. -- Kade Anderson was already pacing towards the dugout before the umpire’s call. No automated ball-strike system needed; he knew he’d dotted the outer half for strike three. No fear pitching against established big leaguers for the first time. No doubt in his belonging on this stage.

PEORIA, Ariz. -- The good news for Bryce Miller is that his arm has felt great throughout Spring Training. The not-so-good news is that he recently suffered left side oblique inflammation that will preclude him from making his next Cactus League start. Miller received a platelet rich plasma shot on

PEORIA, Ariz. -- The radar gun on Friday night got more of a workout than is typically customary for Luis Castillo at this time of year. And that was by design. The elder statesman of the Mariners’ rotation averaged 95 mph on his four-seam fastball velocity among the 20 that

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PEORIA, Ariz. -- It wasn’t long ago that Julio Rodríguez was in Colt Emerson’s shoes. And the Mariners’ front office hasn’t ruled out a similar Spring Training outcome for their No. 1 prospect by MLB Pipeline (No. 9 overall) to the player who held that distinction four years ago --

PEORIA, Ariz. -- The bone spurs are still in Bryce Miller’s pitching elbow. But the Mariners right-hander discovered a solution early in the offseason that allowed him to avoid undergoing a procedure that he’d long envisioned as inevitable.

SURPRISE, Ariz. -- The defining moments of Bryan Woo's spectacular 2025 were those that no one outside Seattle’s clubhouse saw. In the public eye, there was the All-Star selection, the fifth-place finish for the American League Cy Young Award and the franchise record of pitching through the sixth inning in

PEORIA, Ariz. -- For all his intensity on the field, there’s a gentler side to Josh Naylor that he says is rooted in “respect and kindness.” And no moment encapsulated those values more than when the Mariners first baseman stepped to the plate for the first time for Tuesday afternoon’s

PEORIA, Ariz. -- This was a big one, even by the standards of “Big Dumper.” Cal Raleigh crushed his first homer of the Cactus League season on Tuesday afternoon, pummeling a first-pitch changeup from White Sox reliever Wikelman González and sending it to the left of straightaway center field on

This story was excerpted from Daniel Kramer’s Mariners Beat newsletter. To read the full newsletter, click here. And subscribe to get it regularly in your inbox.