to the restored Yugoslav championship starting next season. As winners, Željezničar became one of the Bosnian representatives in the Yugoslav top-flight. Soon after, the Sarajevo citizens formed a new club called FK Sarajevo, the club that has remained a major annoyance to Željezničar's fans (known as The Maniacs) until today. That had an influence on the club, so it needed several years to come back to the first division. For most of the time, Željezničar played in the top level. It was relegated four times (the last time in the 1976–77 season), but every time (except the first time in 1947) it returned quickly. Planinić affair In 1964, the Football Association of Yugoslavia found Željezničar guilty for match fixing. Alongside Željezničar, Hajduk Split and Trešnjevka were found guilty and were ejected from the First Yugoslav League. Among others, Željezničar players Ivica Osim and Mišo Smajlović were banned from football for one year, and executives from Željezničar including then club president Nusret Mahić were banned from football for life. After a month it was decided that the clubs will stay in the league but points will be deducted, six from Željezničar and five from Hajduk and Trešnjevka each. UEFA Cup 1971–72 quarter-finalists The club first appeared in European competitions during the 1963 Mitropa Cup, however serious competitions had to wait until the early 1970s when the team finished the 1970–71 Yugoslav First League season in 2nd place, a result which allowed the club to play in the 1971–72 UEFA Cup where they made the quarter-finals on their very first appearance losing to Ferencvárosi in a penalty shootout. 1971–72 Yugoslav champions 1971–72 Yugoslav First League table (top 5 only): Željezničar's greatest domestic success at the time came in the 1971–72 season when the team won the championship title, their only top-tier title in the Yugoslav period, which qualified the club for the European Cup during the 1972–73 season where they were eliminated in the first round by Derby County. Željezničar also finished in third place in the top-tier league on two occasions in a league traditionally dominated by the big four clubs (Red Star Belgrade, Partizan, Hajduk Split and Dinamo Zagreb). 1980–81 Marshal Tito Cup finalists In the 1980–81 season, Željezničar reached the Yugoslav cup final (Marshal Tito Cup), but lost 2–3 to another Bosnian side Velež Mostar with both Mehmed Baždarević and Vahid Halilhodžić scoring a brace for their respective teams.