GENEVA - FIFA on Friday announced that they had opened a probe against Australian-born Croatia defender Josip Simunic for his pro-Nazi chants that marred the country's World Cup qualification celebrations. "Disciplinary proceedings have been opened," a FIFA spokesman told AFP, declining to make further comment on the player's case. FIFA also opened an investigation against Croatia's fans for "improper conduct", the spokesman said. Following Tuesday's 2-0 home win against Iceland that saw them advance from their World Cup qualifying play-off, Simunic took over a microphone. He shouted "za dom" -- Croatian for "for the homeland" -- four times. In response, fans chanted "spremni", meaning "ready". The chant was used by Croatia's World War II Ustasha regime, allied to Nazi Germany.–AFP