Indiscipline was at the highest order in Week 4 as a total of six red cards were shown in the nine games played this week. It was also the week of Andre-Pierre Gignac.
Juan Antonio Pizzi, who was announced as Chile manager earlier in the week, had a departure to forget as the Gignac scored a hat-trick to power TIgres past Leon at the Estadio Universitario.
The Frenchman got things going with a superb chip after only 11 minutes, and with the score at 2-1, culminated a brilliant first half by turning in a Rafael Sobis cross.