Yeh, but that's not the reason we'd be doing it is it. We'd be doing it is because some people can't separate sport from politics, and also because of a degree of jingoism. And I bet Ulloa himself would work that out pretty quickly as well. Argentine flag or no flag at all for me.
I'd much prefer the Argentinian flag than any regional flag. I almost think that anything other than the national flag would be disrespecful to his nationality.
We all know that we should respect countries national anthems, why not their flags as well?