Ce n'est pas peut être, c'est effectivement ce qui a été dit. Tous les joueurs tchèques sont des natifs.
D'après wiki (pas vérifié si c'est exactement cela) :
A player is eligible to participate on a World Baseball Classic team if any one of the following criteria is met:[30]
The player is qualified for citizenship or to hold a passport under the laws of a nation represented by a team, but has not been granted citizenship or been issued a passport; in this case, the player may be made eligible by WBC upon petition by the player or team.
The player is a permanent legal resident of the nation or territory the team represents.
The player was born in the nation or territory the team represents.
The player has one parent who is, or if deceased was, a citizen of the nation the team represents.
The player has one parent who was born in the nation or territory the team represents
Ah, et accessoirement : The player is a citizen of the nation the team represents.
