It would take a minor miracle for Iberian neighbours Spain and Portugal not to make it out of Group B.
The two world powers meet in the first of the group B games, with Spain winning 1-0 the last time they met in World Cup competition, at the 2010 tournament.
Defensive-minded Iran probably won’t offer much resistance, but Morocco is definitely capable of springing an upset.
How qualified: Won AFC Group A
Population: 82 million
Team nickname: Team Melli (‘The National Team’)
Best World Cup finish: Group stage (5 times)
Coach: Carlos Queiroz (POR)
You might know: Mehdi Teremi (Al Gharafa, Qatar)
The good: Shouldn’t let in many goals.
The bad: Won’t score many goals.
How qualified: Won CAF Group C
Population: 34 million
Team nickname: Lions of the Atlas
Best World Cup finish: Round of 16 (1986)
Coach: Herve Renard (FRA)
You might know: Mehdi Benatia (Juventus)
Odds: $326 (Subject to change)
The good: Five Dutch-born players have committed to the cause.
The bad: Will they be intimidated by Portugal and Spain?
How qualified: Won UEFA Group B
Population: 10.8 million
Team nickname: A Selacao das Quinas (‘Selection of shields’)
Best World Cup finish: 3rd place (1966)
Coach: Fernando Santos (POR)
You might know: Cristiano Ronaldo (Real Madrid)
The good: Cristiano Ronaldo.
The bad: Cristiano Ronaldo’s hair.
How qualified: Won UEFA Group G
Population: 49 million
Team nickname: La Furia Roja (‘The Red Fury’)
Best World Cup performance: Winner (2010)
Coach: Julen Lopetegui (ESP)
You might know: David DeGea (Manchester United)
The good: So much talent.
The bad: Unfortunately that talent includes Sergio Ramos.
Two to advance:
-Spain (group winners)
-Portugal (very close second)