Teams: Wisla Krakow & Cleveland City Stars (USL-1)
Ok, I'm not that great with the system, as I don't speak Spanish fluently, but here goes...
There are 18 teams in the top division. The season is divided into two parts, Apertura and Clasura. For each part, there are six teams in each group. The top two teams in each group automatically advance to the quarter finals as well as the top two third place teams. The quarterfinals, semifinals, and final are all played over two legs. The winner of the final, is obviously, crowned the Champion. This year, America won the Clasura. Every year there can be two champions. However, last season, Pumas won both the Clasura and Apertura, becoming the first "bicampeonato".
I hope that helps!
U.S. SOCCER - Don't Tread on Me