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Luis Castillo took the mound today, showcasing his offseason work by hitting an impressive 95 mph on his fastball, a promising sign as he aims to build on his postseason heroics. As Spring Training rolls on, the buzz around young talents like Colt Emerson is palpable, but the prospect of a roster crunch looms large with veterans like Brendan Donovan and Cole Young in the mix. Meanwhile, eyes will be on Kade Anderson as he makes his debut against the Diamondbacks, with fans eager to see if his competitiveness matches the hype. This Spring is all about growth and experimentation, and with so many storylines unfolding, the Mariners are fostering a vibrant clubhouse demeanor as they prepare for the season ahead.
Sources
Lookout Landing
Mariners Spring Training 2026, Game #8: Thread
As Spring Training hits its stride and the Mariners move past their first week of games, Luis Castillo — La Piedra — takes the rock for the first time in 2026. Castillo, despite an up-and-down regular season, was an absolute hero during the postseason and we are all looking forward to seeing what he has […]
Lookout Landing
What are your way-too-early Seattle Mariners Spring Training hot takes? The hotter, the better
Happy Friday! We’ve got a whopping seven games of Mariners Spring Training under our collective belts and it’s high time to foolishly prognosticate! Here are some prompts: Sound off in the comments, make some BOLD and outlandish predictions, and let’s get ready for another 3 weeks of practice baseball. Go Mariners.
MLB.com
New guys fitting into Mariners' effort to foster strong clubhouse
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.
MLB.com
Castillo says offseason regimen is fueling early spring velo
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
Sodomojo
Colt Emerson could have Mariners on collision course with awkward roster crunch
Colt Emerson is raking and flashing polish, but fitting him alongside Brendan Donovan and Cole Young could turn a fun spring story into a real crunch.
Sodomojo
3 things Mariners should watch for in Kade Anderson's spring training debut
Kade Anderson is finally set to make his Mariners debut on Friday against San Diego. Eyes should be on his competitiveness, his velocity and his changeup.