born in doboj, sr bosnia and herzegovina, omerović begin his career in fk sloboda tuzla, making his debut in the yugoslav first league in the 1980–81 season. he spent four seasons playing in tuzla, when in summer 1984 he was transferred to fk partizan where he will become the main goalkeeper for the following 8 seasons. with partizan he won two yugoslav championships, two yugoslav cups, and one supercup.