Cristiano Ronaldo says he's almost certain he will not be playing at the Club World Cup, dealing a blow to FIFA president Gianni Infantino’s hopes of having one of soccer’s biggest attractions at the tournament.

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

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,