  A strong structural regularity of classes is found in soccer teams ranked by
the Union of European Football Associations (UEFA) for the time interval
2009-2014. It concerns 424 to 453 teams according to the 5 competition seasons.
The analysis is based on the rank-size theory considerations, the size being
the UEFA coefficient at the end of a season. Three classes emerge: (i) the few
"top" teams, (ii) 300 teams, (iii) the rest of the involved teams (about 150)
in the tail of the distribution. There are marked empirical laws describing
each class. A 3-parameter Lavalette function is used to describe the concave
curving as the rank increases, and to distinguish the the tail from the central
behavior.
