In the particular case of Argentina , the Apertura was contested in the second half of the calendar year .
The Apertura was played in the first half of the following year ( in order to synchronize the seasons with those of the European football ) .
In the particular case of Argentina , the Apertura was contested in the second half of the calendar year , and the Clausura was played in the first half of the following year ( in order to synchronize the seasons with those of the European football ) .