Yes, players can switch their team in between World Baseball Classics.
For the 2026 WBC, the most notable shift is Nolan Arenado, who officially committed to Team Puerto Rico in January 2026 after winning gold and silver with Team USA in previous years. Arenado, whose mother is of Puerto Rican and Cuban descent, noted that the opportunity to play in San Juan and honor his family’s roots was a primary motivator, despite some backlash from fans who viewed the move as a slight to the American squad.