There are some clubs from western Bavaria playing in the Wrttemberg football which is a German amateur league system and the SpVgg Au/Iller played in the Verbandsliga during the 2009-10 season.
A founding member of both FIFA and UEFA, the DFB has jurisdiction for the German football league system and is in charge of the men's and women's national teams. In turn, some clubs from the very west of Swabia chose to play in the Wurttemberg league system, most successful of those are the SpVgg Au/Iller, FV Illertissen and the SpVgg Lindau. The Wurttemberg Football Association (German: Wurttembergischer Fuballverband), the WFV, is one of 21 state organisations of the German Football Association, the DFB, and covers the nortnh-western part of the state of Baden-Wurttemberg. 
