Peoria, Arizona – February 19, 2026 – The Seattle Mariners started spring training last week ahead of their first pre-season game on February 20th against the San Diego Padres at 12:10 PT.
This spring, the roster includes 13 right handed pitchers, 3 left handed pitchers, 7 outfielders, 7 infielders, 6 catchers, and 23 pitchers. Invitees include a mix of promising young players and experienced veterans competing for roster spots after a busy offseason.
Notable Departures
Several familiar faces will not be returning to Seattle in 2026. Veteran catcher Mitch Garver departed via free agency and top prospect Harry Ford was traded to the Washington Nationals.
Fan-favorite third baseman Eugenio Suárez, affectionately known as “Gino,” signed with the Cincinnati Reds, marking the end of his popular tenure in Seattle.
Catching Corps Headlined by an MVP Runner-Up
All eyes this spring will be on catcher Cal Raleigh, who had an amazing season last year. Raleigh was the runner-up for the 2025 American League MVP award, hitting 60 home runs and getting 125 RBIs, leading all catchers and switch-hitters in home runs. He lost the MVP vote to Aaron Judge from the New York Yankees.
Last March, Raleigh also secured his future in Seattle by signing a six-year, $105 million contract extension that lasts until 2030, with an option for 2031.
Joining him behind the plate are veteran Andrew Knizner, who signed a one-year, $1 million free-agent deal, and Jhonny Pereda, acquired in a trade with the Minnesota Twins. Pereda enters camp with one minor league option remaining, adding flexibility to the roster competition.
Brian O’Keefe returned to Mariners training camp with a new minor league contract from the Mariners. The veteran catcher made his MLB debut in 2022 at T-Mobile Park and appeared in 10 games through 2023. In 2025 O’Keefe played with the Tacoma Rainiers the Mariners Triple A affiliate.
Reinforced Infield Anchors Lineup
The Mariners signed slugger Josh Naylor to a five-year, $92.5 million free-agent contract, signaling a clear commitment to bolstering the heart of the order.
Naylor recently warmed the hearts of many fans after photos of him with the Mariners pup circulated online. He spoke about his affection for Tucker at a recent press conference joking to members of the front office that the clubhouse dog “was a big reason why he came back“.
The infield features promising young second baseman Cole Young, steady third baseman Brendan Donovan, and veteran shortstop J.P. Crawford.
The 31-year-old Crawford enters the final season of his five-year, $51 million contract, providing leadership and stability up the middle.
A Competitive Camp Ahead
With a mix of well-known players, big financial investments, and eager non-roster invitees wanting to impress, Seattle’s camp in Peoria is set to be one of the most competitive in a long time.
For fans going to Arizona, the 2026 Mariners offer familiarity and new excitement with a team aiming to improve on last season’s highlights while changing the roster for another shot at the playoffs.
Fan Favorites Present in Arizona
Left Field: Randy Arozarena who had a career-best 27 homers, 31 stolen bases and his second All-Star selection in 2025.
Center Field: Julio Rodríguez who’s 2025 highlights included 652 at-bats and played in all but two games.
Right Fielders: Luke Raley, Victor Robles
Designated Hitters: Dominic Canzone, Rob Refsnyder
Starting Pitchers: Logan Gilbert, Bryan Woo, George Kirby, Luis Castillo, and Bryce Miller.
Relief Pitchers: Andrés Muñoz, Matt Brash, Gabe Speier, Eduard Bazardo, Jose A. Ferrer, Carlos Vargas, Ryan Loutous and Robinson Ortiz
Where to Watch
Broadcast: Fans can watch 16 of the games for free through the team’s new streaming service on MarinersTV. The service also has plans for regular and post season viewing.
Listen: Residents in Washington, Oregon, Idaho, Montana, British Columbia, and Alaska can listen online at Seattle Sports 710 or download the Seattle Sports App on Android and Google Play. Listeners can access 20 of the 30 games.
Out of Market coverage: Out-of-market fans can also listen via the MLB app.
Find a complete list of available games here or on the Mariner’s website.
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