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.

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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

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.

The 2023 World Baseball Classic was an exhilarating tournament that thrilled us from start to finish. There’s a chance that the ‘26 version is every bit as good. When WBC rosters were unveiled earlier this month, it was abundantly clear just how much talent will take the field in this

ABS (the Automated Ball-Strike Challenge System, powered by T-Mobile) is finally here, and in Spring Training, we're getting our first good look at which Major League batters and catchers are the best … and worst … at challenging balls and strikes. To keep track of all your challenge needs, we

This page will be updated throughout the year with all the latest Mariners injury news and transactions.

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 --

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

Power wins games. As MLB Network insider Tom Verducci has noted, the last six World Series champions have ranked first, third, fourth, third, third and second in regular-season home runs.

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.

GLENDALE, Ariz. -- Logan Gilbert has added the most robust accessory to his assortment of conditioning devices that he totes to work every day, though this one doesn’t exactly deal with baseball. It’s a stroller, and watching the Mariners’ 6-foot-6 right-hander gently pace it through Seattle’s facility has been one

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PEORIA, Ariz. -- Mariners fans might not know much about new lefty reliever Jose A. Ferrer, other than that to acquire him, the front office parted ways with one of its more well-known and longest-tenured prospects. But consider this: There might not be anybody in camp more thrilled about his

This World Baseball Classic is different for Team Canada. The days of a roster filled with Minor Leaguers and MLB bench players are gone. Feeling overmatched by All-Star studded clubs such as Team USA and Team Mexico during the group stage is no longer an issue. Instead of reaching out

PEORIA, Ariz. -- For the back fields, the ovation was loud. Yet after the show that Kade Anderson put on, it was also substantiated.

Spring Training is not just a time for players to get back into game shape. It's also a time of opportunity. Though teams already have a good idea about their Opening Day lineups, the full rosters usually aren't completely set when players report to camp in Florida or Arizona. That

PEORIA, Ariz. -- Cal Raleigh knew he was going to utilize a challenge against the first borderline call he caught on Friday. And sure enough, that offering came just seven pitches into the Mariners’ Cactus League opener.

PEORIA, Ariz. -- The first steps were clean. The exchanges crisp. And the throws, even at the ripe age of 52, carried the trademark finish to elevate the few eyebrows that weren't already raised behind the backfields at the Peoria Sports Complex. Indeed, Ichiro Suzuki is back in uniform at

PEORIA, Ariz. -- The scream will be seared into Mariners’ fans minds, maybe forever. In the heartbreaking moments following Seattle’s Game 7 loss to the Blue Jays in the American League Championship Series, Bryan Woo was being interviewed on camera and asked about the legacy of the 2025 team --

PEORIA, Ariz. -- Michael Arroyo couldn’t wait to return to his hotel on Friday night, where his older brother, Carlos, would be eagerly awaiting to talk about his big day. Arroyo, the Mariners’ No. 5 prospect and MLB Pipeline’s No. 67 overall, crushed Seattle’s first homer of Cactus League play