 Complete the following phrase:  The first official international encounter after 54 years between Croatia and Serbia the latter playing as FR Yugoslavia, occurred on 18 August 1999 at the Red Star Stadium in Belgrade, as part of UEFA Euro 2000 qualifying. The match ended as a goalless draw. The match remained memorable for power outage at the stadium that allegedly intimidated the Croatian players. The return game at Stadion Maksimir in Zagreb was played on 9 October 1999 and it was a decisive match for Croatia, as they needed a victory to qualify for the 