SEATTLE -- The next wave of Mariners prospects isn’t just on the way. A few of them already arrived late in 2026.
And how much the youngsters will get a chance to contribute in ‘27 will be a leading storyline heading into Spring Training, which could hinge on how president of baseball operations Jerry Dipoto and general manager Justin Hollander round out the roster.
Here’s a wide-ranging look at the state of Seattle’s farm system, which checked in at No. 9 in MLB Pipeline’s most recent rankings.
3 players who forced their way onto the radar this year
LHP Kade Anderson (No. 1 prospect): He avoided a significant scare when taking a 103.8 mph comebacker off his pitching arm during his final start. And while it did leave him with a bruised finish, the 22-year-old nonetheless was on an upward trajectory heading into the offseason, with a 3.79 ERA (104 ERA+, where league average is 100) over seven starts. By all indications, his promotion on Aug. 22 was a permanent one, and he’ll be eyeing a full MLB workload in 2027.
INF/OF Michael Arroyo (No. 3): He might be the 40-man roster’s most intriguing player heading into winter, given that the club was willing to give him a chance in September (albeit in a strictly platooned role) and that the clearest position for him to contribute is now wide open (with left fielder Randy Arozarena heading to free agency).
OF/DH Lazaro Montes (No. 4): Will the Mariners give the huge slugger runway for a permanent opportunity, after a few epic moments as a September callup? Or will they want to see more seasoning at Triple-A Tacoma? These questions might be answered based on who the Mariners add externally this winter, as well as Montes’ showing in Spring Training.
