KAZAN, Russia -- A member of the Iran national team staff was hospitalised Wednesday after the team was denied a goal when video review held up an offside call in their World Cup match against Spain.

Iran coach Carlos Queiroz did not reveal the identity of the person, who felt ill after referee Andres Cunha disallowed Saeid Ezatolahi's goal. Cunha overturned the goal after an assistant referee and the video assistant signaled that the player was offside.

Spain won the game 1-0.

"We're more concerned because one member of our staff is in difficulties from a health point of view after the VAR decision," Queiroz said. "He went to the hospital. We hope everything will be all right. Our prayers go out to him at this moment."

With three points from their opening win against Morocco, Iran can still qualify for the knockout round but will need to beat Portugal on Monday in Saransk.

Spain and Portugal are tied for the Group B lead with four points each.