it's true that Zidane is a football player (he have play in Italy when ff9 was created and it was very famous) but in the italian version Zidan's name is Gidan (I don't know if Gidan is the italian name of that tribe)

about Rachel (or Ratchel) in the italian version he use a different name (i don't remember how he called her but i'm sure he did not call her rachel or ratchel and about ff6 there isn't the italian version)