In the group stage, each group is being played in a double round-robin format in centralised venues. The winners of each group and three best runners-up from each region will advance to the round of 16 of the knockout stage.
In the group stage, each group is being played in a double round-robin format in centralised venues. The winners of each group and three best runners-up from each region will advance to the round of 16 of the knockout stage.