In 2004, some have even felt Petković would have made the "Seleção" if he were Brazilian. To that end, after the changing of the former FR Yugoslavia into Serbia and Montenegro the previous year, he publicized his dream in being picked by the Brazil national side, but he did not have Brazilian citizenship. In 2006, a campaign in his native country urged the Serbian FA to select Petković for Serbia and Montenegro's final roster for the World Cup in Germany. Striker Savo Milošević even went as far as saying Petković would be a welcome addition. In January 2006, it was announced that Petković would be called up for friendly matches in February, but nothing ever came of it. The then Serbia and Montenegro coach Ilija Petković, who is not a relative of him, thought Dejan Petković would disrupt the team's harmony, as he had a reputation for having a very loud personality. However, even before the nation upcoming final breakup, the harmony was disrupted by the coach himself, after Ilija called his son Dušan Petković, a defender who played just a few matches until 2004 for the team, to replace the injured forward Mirko Vučinić. Embarrassed after huge criticism, Dušan asked to not take part of the squad.