San Lorenzo win 74-minute game to stay in title hunt
Tuesday's match was divided into two halves of 37 minutes and Huracan took the field leading 1-0 from Saturday's 16 minutes play but with only 10 men as Javier Pastore was sent off before the interruption.
Although the red card and the scoreline stood, the teams were allowed to make changes from their original line-ups.
Huracan held out for the first half on Tuesday but fell apart after some sloppy defending in the second half.
Paraguayan midfielder Aureliano Torres headed San Lorenzo's equaliser in the third minute of the second half -- effectively the 56th minute of the match -- then supplied two free kicks from which Cristian Chavez and Andres Silvera headed two more.
Silvera completed the rout in the 35th minute of the second half with his second of the day.
The win took San Lorenzo into second place in the Apertura championship with 33 points from 17 games, two behind leaders Boca Juniors and ahead of Tigre on goal difference with two matches each to play.
(Reporting by Brian Homewood; Editing by Greg Stutchbury)