The Knoxville NightHawks were a professional indoor football team based in Knoxville, Tennessee. The team was a member of the Professional Indoor Football League (PIFL). The NightHawks joined the PIFL in 2012 as an expansion team. The NightHawks were the second indoor/arena football team based in Knoxville, following the Tennessee ThunderCats which played in the Indoor Professional Football League for the 2001 season before joining the National Indoor Football League where they played the 2002 and 2003 seasons (the latter of which they played as the Tennessee Riverhawks) before moving to Greenville, South Carolina. The Owner of the NightHawks was Southern Sports Entertainment, LLC. The NightHawks played their home games at the James White Civic Coliseum in Knoxville, Tennessee.