Friends in Clubs, Enemies at the 2018 World Cup

They can be friendly and play together in a club, but in the event the World Cup later, they must forget for a moment of it and focus to defend their respective countries. Here is a list of players playing in the same club but must compete to qualify from the 2018 World Cup group stage:
No doubt, the match between Portugal and Spain will run excitingly. Cristiano Ronaldo will meet many of his colleagues at Real Madrid when the two countries are facing Group B opener. Most anticipated of course the fight between Ronaldo and Sergio Ramos. Will Ramos wrestle with his partner as well?