Get ready for an exciting baseball adventure with the Seattle Mariners at the 2026 World Baseball Classic (WBC)! A true celebration of global baseball talent, the WBC is about to showcase some incredible players, and the Mariners are proudly represented.
The MLB Network recently unveiled the full rosters for the 20 teams participating in this prestigious event, and the Mariners have an impressive 11 players across eight teams. That's one more than the 2023 WBC and matches their 2017 participation. Each team has a 30-man roster, so the Mariners' presence is significant.
But here's where it gets interesting... The Mariners have a diverse range of players participating, from major leaguers to minor leaguers and even some spring training hopefuls. This diverse group includes two-thirds of their starting outfield, the starting catcher, first baseman, and some powerful bullpen arms. It's a true showcase of their talent and depth.
Let's dive into the breakdown of Mariners players by team:
United States
- Cal Raleigh, Catcher
- Gabe Speier, Left-Handed Pitcher
The Mariners' star catcher, Cal Raleigh, and their top left-handed reliever, Gabe Speier, are set to make their WBC debut. Raleigh announced his participation during the All-Star festivities in July, and Speier joined the team in January. They're both eager to contribute to Team USA's success.
Dominican Republic
- Julio Rodríguez, Outfielder
Julio Rodríguez, a key member of the Mariners' starting outfield, made his WBC debut in 2023. He had a solid performance, going 5 for 18 with a double and three RBIs in four games. Rodríguez is looking to build on that experience and help the Dominican Republic go even further this time around.
Mexico
- Randy Arozarena, Outfielder
- Andrés Muñoz, Right-Handed Pitcher
Randy Arozarena, another Mariners outfielder, was a standout performer at the 2023 WBC. He hit an impressive .450 with a 1.507 OPS, six doubles, one homer, and nine RBIs in six games. Andrés Muñoz, a right-handed pitcher, is making his WBC debut and will add depth to Mexico's pitching staff.
Canada
- Josh Naylor, First Baseman
Josh Naylor, who recently re-signed with the Mariners, is a veteran of the WBC. He played for Canada in 2017 as a 19-year-old and is now returning for his second appearance. Naylor missed the 2023 event due to an ankle injury, so he's eager to contribute to Canada's campaign.
Venezuela
- Eduard Bazardo, Right-Handed Pitcher
Eduard Bazardo is set to make his WBC debut after a breakout season in 2025. He'll be a key part of Venezuela's pitching rotation and will look to help his team advance through the tournament.
Colombia
- Michael Arroyo, Infielder/Outfielder
Michael Arroyo, ranked as the No. 67 prospect in baseball by MLB Pipeline, played a crucial role in helping Colombia qualify for the WBC. He went 3-for-10 with two RBIs and two stolen bases in three games during the qualifiers last March.
Italy
- Dominic Canzone, Outfielder
- Miles Mastrobuoni, Utility Player
Dominic Canzone is making his WBC debut after a breakout 2025 season. Miles Mastrobuoni, a utility player, has previous WBC experience, having played for Italy in 2023. Both players will add depth and versatility to Italy's roster.
Korea
- Dane Dunning, Right-Handed Pitcher
Dane Dunning, who recently signed a minor league deal with the Mariners, is also making his WBC debut. He'll be a valuable addition to Korea's pitching staff.
Former Mariners and Locals
The WBC rosters also include some familiar faces who have previously played for the Mariners or are from the Seattle area. Left-handed pitcher Matthew Boyd (U.S.), right-handed pitcher Riley O'Brien (Korea), and outfielder Stuart Fairchild (Chinese Taipei) are all former Mariners who are now representing their respective countries.
Additionally, Seattle native and two-time All-Star Corbin Carroll is an outfielder for Team USA. It's great to see these players continuing to make an impact on the international stage.
Other Former Mariners
There are several other former Mariners on WBC rosters, including Eugenio Suárez (Venezuela), Edwin Díaz (Puerto Rico), Taijuan Walker (Mexico), and many more. It's a testament to the Mariners' past and present talent that so many of their players are in demand for this prestigious tournament.
And this is the part most people miss... The WBC is not just about the current players; it's also an opportunity to celebrate the history and legacy of the game. The Mariners are doing just that by honoring their 2001 team with a statue at T-Mobile Park. It's a reminder of the rich tradition and success the Mariners have achieved over the years.
So, as the WBC gets underway on March 5, with the championship game scheduled for March 17 in Miami, keep an eye out for the Seattle Mariners' players. They're ready to showcase their skills and represent their teams and the Mariners organization with pride.
Don't forget to follow @ZacHereth for more baseball insights and updates! Who do you think will be the standout performers from the Mariners' contingent at the 2026 WBC? Let's discuss in the comments!
