Having under-achieved at Euro 2016, Spain installed a new coach in Julen Lopetegui and introduced a raft of newer, hungrier players like Isco, Koke and Marco Asensio. The basic style, though, remains the same, with veterans Andres Iniesta and David Silva setting the platform for their famed, metronomic passing game.
In goalkeeper David de Gea, they have, on form, the best No 1 in the world, while the oft-maligned Sergio Ramos leads the defence with an aggression that many believe is contrary to the rule and spirit of the sport. Ramos is crucial for Spain – and they will again be one of the tournament favourites.
The north Africans are in a really tough group - but, with their solid defence and structured style of play, they are certainly going to give Portugal and Spain a bit of cheek. Coach Herve Renard has vast experience, captain Mehdi Benatia is one of the finest central defenders in Europe and, in Hakim Ziyech, Morocco have a midfielder who is rapidly catching the eye.
Coached by Carlos Queiroz, the man who was once in line for the Bafana Bafana job, Iran are on a hiding to nothing.
Who will go through to the next round?
Spain and Portugal.