Career
Born in Jajce, Social Research Bosnia and Herzegovina, he begin playing in the local club Elektrobosna Jajce. Early in his career, Zjajo played for NK Iskra Bugojno in the Yugoslav Second League. In summer 1985 Zjajo will become the main figure in a major controversy.
First he signed a contract with NK Dinamo Zagreb and played the pre-season matches with them, however Iskra made a complain to the Football Association of Yugoslavia and the contract was declared invalid.
FK Partizan also made an attempt to sign him, however it was Red Star Belgrade that brought him that summer to their squad. His former club Iskra Bugojno had made a complaint to the Yugoslav FA claiming he was still their player, and Vojvodina claimed that Red Star had no right to use Zjajo as the FA did not rule out any decision about who´s player Zjajo was.
However, as he had played for Red Star in the against Football Club Aarau, and the Swiss club had announced that would complaint, the case was already internationalized. Union of European Football Associations asked the Yugoslav FA for clarifications and it could end with sanctions for Red Star.
Because of that, the Yugoslav FA decided that Zjajo was indeed Iskra Bugojno player, which was an undeniable fact as he had active contract with them, however it decided that the matches for Red Star which he played would count and Red Star would suffer no sanctions for linning him up.
Next he spent part of the season of 1986-1987 playing in the United States with Chicago Sting in the MISL. Later, he would move abroad to play in France and Switzerland.
