Historically, there are actually versions in the number of taking part teams; at a single level, La Liga accommodated as many as 22 groups, which resulted in a total of 42 matches per staff. 1st, Xoilac will wander you through this Match while describing how many rounds there are in https://troyxsnke.madmouseblog.com/20531436/detailed-notes-on-how-many-rounds-are-there-in-la-liga