16 Seattle Mariners to Compete in World Baseball Classic

Mariners have second-highest total of players among MLB teams for upcoming tournament

Feb. 5, 2026 at 11:15pm

Got story updates? Submit your updates here. ›

The full rosters for the 2026 World Baseball Classic have been announced, and the Seattle Mariners will be sending 16 players to represent various national teams in the tournament. This is the second-highest total of any MLB organization, trailing only the New York Mets with 17 players.

Why it matters

The World Baseball Classic is a prestigious international baseball competition that showcases top talent from around the globe. The large Mariners contingent highlights the depth and quality of the team's roster, as well as the global reach of the organization's player development system.

The details

The 16 Mariners players set to compete in the World Baseball Classic span several national teams, including Brazil, Canada, Colombia, the Dominican Republic, Israel, Italy, Mexico, the Netherlands, Panama, South Korea, and the United States. Notable Mariners participating include All-Star outfielder Julio Rodríguez (Dominican Republic), hard-throwing reliever Andrés Muñoz (Mexico), and catcher Cal Raleigh (USA).

  • The 2026 World Baseball Classic will be played from March 5th to March 17th.
  • Pool play will take place in Houston, Texas; Miami, Florida; San Juan, Puerto Rico; and Tokyo, Japan.
  • The final rounds will be held in Miami.

The players

Pedro Da Costa Lemos

Mariners right-handed pitcher representing Brazil.

Josh Naylor

Mariners first baseman representing Canada.

Michael Arroyo

Mariners utility player representing Colombia.

Guillo Zuñiga

Mariners right-handed pitcher representing Colombia.

Julio Rodríguez

Mariners All-Star outfielder representing the Dominican Republic.

Charlie Beilenson

Mariners right-handed pitcher representing Israel.

Got photos? Submit your photos here. ›

What’s next

The World Baseball Classic pool play will begin on March 5th, with the final rounds taking place in Miami starting on March 15th.

The takeaway

The Mariners' strong representation in the World Baseball Classic is a testament to the team's talent and the organization's ability to develop players from diverse backgrounds who can compete at the highest international levels of the sport.