My understanding — although I haven’t been able to find a direct link on the FIFA site — is that there is a “switch‑back if never capped” provision. Senior friendlies and U21 matches aren’t considered competitive fixtures, so in theory there remains a small window for a player to return to their original national team if they haven’t played a competitive senior match. This is why I expect both players to be capped in the Nations League, as those matches do count as competitive fixtures and would permanently tie them to Croatia/Greece. Tie them down early and keep your options open down the line if they grow into the players you expect.Might be wrong, but isnt the rule that since theyve used the 'one time switch' mechanic playing in any match at any level will be enough. A senior friendly, or underage friendly is enough to cap tie?
