The goalkeeper has not been at his best in recent games, but he is in line to start against Iran
Spain coach Fernando Hierro has insisted he has full confidence in David de Gea, despite his mistake in the draw with Portugal.
The long-time Real Madrid star also confirmed that De Gea will keep his place in goal as Spain's quest to regain the World Cup, which they won in 2010, continues.
De Gea fumbled an effort from Cristiano Ronaldo from distance in Friday's 3-3 draw with their Iberian rivals and made a similar mistake in a warm-up match against Switzerland earlier this month.