Iran had been on a four-match winless run before a 2-0 victory against Trinidad and Tobago in their final match this past weekend.
Cruz, assistant to Carlos Quieroz, says they are excited to head into the World Cup on the back of a win.
“It was a game that has fulfilled our expectations,” he told Globoesporte. “We are preparing for the first match against Nigeria. Our only concern is Nigeria at the moment.
“Victory is always important to create a culture of winning. This only happens with results like this.”