National Indoor Football League ended in 2008.
Indoor Professional Football League ended in 2001.
World Indoor Football League ended in 1988.
National Football League Quarterback Challenge ended in 2007.
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World Indoor Soccer League ended in 2001.
Continental Indoor Soccer League ended in 1997.
An American actor and former football defensive end in the National Football League. http://en.wikipedia.org/wiki/Fred_Dryer
Continental Football League ended in 1969.
Intense Football League ended in 2008.
Football League Extra ended in 2004.
World Football League ended in 1975.
Enterprise Football League ended in 2009.