3) Spain
Gone are the glory days of Spanish dominance when they won back-to-back Euros and a World Cup between 2008 and 2012. They were humbled in the 2014 World Cup and Euro 2016 saw a brief resurgence that was effectively quashed by Antonio Conte's Italy.
Vicente del Bosque is long gone and Julen Lopetegui has taken charge. The 51-year-old manager is yet to lose a game with La Furia Roja and he also has a tough task in selecting the final squad for the World Cup.
Spain's biggest strength is their midfield and as a result a number of top quality players will not be booking their tickets to Russia. Players such as Juan Mata and Cesc Fabregas have the rest of the season to convince Lopetegui that they deserve a call-up with immense competition for places.
First team: David De Gea; Dani Carvajal, Gerard Pique, Sergio Ramos, Jordi Alba; Sergio Busquets, Thiago Alcantara, Andres Iniesta; Isco, David Silva, Alvaro Morata
Second team: Sergio Rico; Cesar Azpilicueta, Javi Martinez, Inigo Martinez, Sergio Escudero; Asier Illarramendi, Saul Niguez, Ander Herrera; Pedro, Marco Asensio, Diego Costa
Substitutes: Pepe Reina, Hector Bellerin, Jesus Vallejo, Nacho, Theo Hernandez, Nacho Monreal, Marcos Llorente, Koke, Sergi Roberto, Cesc Fabregas, Dani Ceballos, Juan Mata, Gerard Deulofeu, Paco Alcacer, Iago Aspas