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.

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.