Mariners Release Opening Day Roster; Crawford, Miller Notably Absent with Injury
With opening day right around the corner for the Seattle Mariners - at 7:10 p.m. Pacific on Thursday against the Guardians - the team has released its first 26-man roster for the 2026 season. The top of the depth chart, of course, is very much all over the M’s roster, from returning superstars in Cal Raleigh and Julio RodrÃguez to new additions like Brendan Donovan and Jose A. Ferrer.
But of course it is not all sunshine and roses for the defending AL West champions. Longtime shortstop J.P. Crawford is out for the beginning of the year with a shoulder injury while Bryce Miller is working through an injury of his own, leaving holes in the middle infield and the back of the rotation. Leo Rivas is going to get some playing time at short in the meantime (and perhaps Cole Young might swivel
Assessing Three March Mariner Concerns Ahead of 2026 Regular Season
If the Seattle Mariners started the 2026 regular season 6-16-1 (ignore the tie), things would probably be nearing panic mode in T-Mobile Park. But given that it’s Spring Training, the record isn’t all that concerning as Opening Day begins. But from injury concerns to slow starts for stars, there are some points of worry for the M’s as the season comes into view. Just how worrying are these signs, however? Is there any meaning to be derived from them?
Concern 1: Injury questions for players up and down the roster.
Concern level: 4/10
The most-discussed injury question for the upcoming season has been Bryce Miller, and it seems likely by this point that he won’t be ready to start the regular season. The Mariners have Emerson Hancock and Cooper Criswell both available to fill in the fifth starter role - and I personally expect they’ll start with Hancock, with Criswell in the tank if Hancock again struggles as a starter - but they at least have some good indications due to both players’ performance in Spring Training. That doesn’t necessarily mean much for the regular season, especially in the top-line stats such as ERA and FIP, but the M’s have to be impressed with Hancock’s feel for the ball.
Baseball’s Back: Five Notes from Mariners’ First Spring Training Action of 2026
With blue skies above and many excited fans all around in that picturesque Cactus League ballpark, the Seattle Mariners played their first game of 2026 Spring Training on Friday, Feb. 20. The first day of spring is perhaps the most hopeful time for all 30 teams in any given year, with a nearly clean slate injury-wise and the first harsh reality checks of the regular season still a month and change away.
A quite packed house of 9,956 spectators dotted the Peoria Sports Complex to see the Mariners and Padres both take to their home Spring ball yard. They saw prospects go up against powerhouses in exciting duels and yet also witnessed players trip over each other, lose cans of corn in the sun, and make Little League errors in base coverage. No one got hurt and the game doesn’t count, so both sides came away with a smile in a 7-4 win for Seattle. But what does the first preseason action of 2026 tell us about how things might go when real chips are down for the Mariners?
Michael Arroyo put on a good display at the dish, with a homer and double to power early Seattle production.
Seattle’s system has a fair amount of top-end hitting prospects, and although Colt Emerson and Lazaro Montes headline the system, the crown in Peoria bore witness to another of Seattle’s guys in the farm system. Michael Arroyo, who struggled a bit with his power after his promotion to Double-A in 2025 with a .255/.376/.341 slash line (though this was still a 121 OPS+ where 100 is league average) - and yet decreased his strikeout rate against better pitchers - went into Spring with the chance to show what exactly the Mariners have with him.
Newly-Added Cooper Criswell Leads Pack of Mariners Arm Development Projects, But Several More Dot System
The Mariners added another reliever to the pile on Friday, but Cooper Criswell is just one of quite a few arms with a range between organizational depth and dark horse hero. What does Seattle see in these offseason pickups?
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