A key figure within FIFA , Mattias Grafstrom, has held constructive talks with Iran 's FA President Mehdi Taj and is confident they will appear at the World Cup . Iran are scheduled to play all three of their group matches in the United States but their participation in the ‌tournament has been called into question since the US and Israel attacked Iran ⁠back in February. Further questions were raised when Taj was refused entry to Canada for the FIFA Congress in Vancouver earlier this month