Lineker's guide to Group F
Match of the Day presenter Gary Lineker explains who's hot and who's not in each of the eight World Cup groups.
The former striker, who scored 48 goals in 80 games for England, gives us his view on which two teams will progress to the knock out stages.
This video focuses on Group F which features Iran, Nigeria, Argentina and Bosnia-Hercegovina.
More to see: All Newsround's World Cup stories