The groups were not played as a round-robin; rather, the winners of the first-round matches played each other in the second round, and the first-round losers also played each other in the second round.
Команды в группах не играли каждая друг с другом; вернее, победители матчей первого раунда, также как и проигравшие, играли друг с другом во втором раунде.