The 24 participating teams were divided into six groups. The top and second-best squads of each group and four third-place teams with the best performance will qualify for the next round.
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Only Brazil and Spain participated in all editions. Brazil won the first for five times. The reigning champions, however, are Argentina.
In 2016, Vietnam were among four third-placed teams earning a berth in the second round, in which they were beaten by the runners-up Russia.