 He became a first-team regular in the 2000–01 season, making a career-high 34 appearances across all competitions.In the 2001–02 and 2002–03 seasons, Ćirković helped Partizan win back-to-back championship titles.He was subsequently a member of the team that reached the group stage of the 2003–04 UEFA Champions League, converting the decisive penalty in the shoot-out against Newcastle United in the final qualifying round.