Players can be called up by a national team even if they have under-21 caps for another nation.

0076B63A MOV ECX,DWORD PTR DS:[9CF794] --> [9CF798]
0076B6FE CMP EAX,DWORD PTR DS:[9CF798] --> [9CF794]
00874FAA PUSH 00A84F5C --> PUSH 00A84F44