The AFL(VFL at the time) actually had a Champions League-style comp in the late ‘70s that pitted the top teams from the different State Leagues against each other. It didn’t last long and supposedly wasn’t very popular w/fans, but its enduring image was an incident at Waverley Park where the automated sprinkler-system went off during a match between Hawthorn and WA club Claremont..
It’s typically misremembered as having been a regular-season match between Hawthorn and Richmond, due to Claremont wearing the same kit as Richmond and also sharing the Tigers nickname.
Anyways, they did bring it back in 2009 under the name ‘Foxtel Cup’ but w/o the AFL clubs taking part; not even their reserve-sides playing instead. It goes w/o saying that’s what did it in after one edition.