Queiroz had no doubt about the size of the task facing his side when he spoke to the international media on Tuesday, accepting "Iran don't have supermen like Spain, but we can do super things" as he plotted the unlikely downfall of a team battling suggestions of crisis.
For the most part Iran did exactly those "super things" on Wednesday, as they dug deep, held firm and limited Spain's flow of chances. It wasn't pretty, but for long periods it was effective.
Even off the pitch, Iran were astounding.