Complex sentence: The Association of European Professional Football Leagues (EPFL) is a non-profit sporting organisation dedicated to constructively represent the common views of the Leagues and the Clubs across Europe--all Clubs, regardless of the sporting or economic dimensions.
Split into simpler sentences: The Association of European Professional Football Leagues (EPFL) is a non-profit sporting organisation dedicated to constructively represent the common views of the Leagues and the Clubs across Europe. All Clubs, regardless of the sporting or economic dimensions.