The Seattle Mariners have unveiled their opening day roster ahead of the 2026 season. The announcement, made on Wednesday, confirms the team will take the field with a balanced mix of pitchers and position players.
Opening Day Roster Highlights
- The Mariners’ roster includes 26 players: 13 pitchers and 13 position players.
- This lineup features 22 returning players from the previous season and four newcomers.
- Among the pitchers, there are 11 right-handed and 2 left-handed options.
- In position players, the group comprises 7 right-handed bats, 5 left-handed bats, and 1 switch-hitter.
New Additions to the Team
The four newcomers on the team are:
- Cooper Criswell (right-handed pitcher)
- José A. Ferrer (left-handed pitcher)
- Brendan Donovan (third baseman)
- Rob Refsnyder (outfielder/designated hitter)
Injured List Updates
In conjunction with the roster announcement, several players have been placed on the injured list:
- J.P. Crawford: Right shoulder inflammation (10-day IL)
- Miles Mastrobuoni: Right calf strain (10-day IL)
- Bryce Miller: Left oblique strain (15-day IL)
All injured players have IL designations retroactive to March 22.
Scheduled Opening Game
The Mariners are set to begin their season on Thursday at 7:10 PM at T-Mobile Park. They will face the Cleveland Guardians, with Logan Gilbert starting for Seattle against Tanner Bibee of the Guardians. Pregame coverage will begin at 6 PM on Seattle Sports 710 AM and the Seattle Sports app.
Full Roster Overview
Below is the complete list of the Mariners’ 26-man roster for opening day:
| Position | Player |
|---|---|
| Pitcher | Eduard Bazardo |
| Pitcher | Matt Brash |
| Pitcher | Luis Castillo |
| Pitcher | Cooper Criswell |
| Pitcher | José A. Ferrer (L) |
| Pitcher | Logan Gilbert |
| Pitcher | Emerson Hancock |
| Pitcher | George Kirby |
| Pitcher | Casey Legumina |
| Pitcher | Andrés Muñoz |
| Pitcher | Gabe Speier (L) |
| Pitcher | Carlos Vargas |
| Pitcher | Bryan Woo |
| Catcher | Mitch Garver |
| Catcher | Cal Raleigh |
| Infield | Ryan Bliss |
| Infield | Josh Naylor (L) |
| Infield | Leo Rivas (S) |
| Infield | Cole Young (L) |
| Outfield | Randy Arozarena |
| Outfield | Dominic Canzone (L) |
| Outfield | Victor Robles |
| Outfield | Julio Rodríguez |
| Infield/Outfield | Brendan Donovan (L) |
| Infield/Outfield | Luke Raley (L) |
| Infield/Outfield | Rob Refsnyder |
