In his third game of the 2006 FIFA World Cup in Germany, Croatia vs Australia, he cautioned Croatian defender Josip Šimunić three time before sending him off. Poll retired from refereeing international tournament finals matches shortly afterwards, citing his error in the match. He continued to referee in the Premier League, Champions League and on international games, but said he would disallow himself to be nominated to represent the FA at any tournament finals as he felt he had his chance.