Al-Nassr and Portugal forward Cristiano Ronaldo said on Saturday he did not plan to play at the Club World Cup in the United States, despite being courted by clubs participating in the expanded 32-team tournament.

Some things make sense to talk about, other things don’t, and, as a person says, you can’t take part in everything,” Ronaldo remarked. "You have to think about the short, medium and long term. It’s a decision practically made on my part not to go to the Club World Cup,

From missing stars and top teams to concerns over player welfare, here are key talking points before Club World Cup.