The AFL has scheduled fixtures at Etihad Stadium and the MCG on the day set for the A-League showpiece.

As major tenants of both venues, the AFL has the right to override any booking previously made by Football Federation Australia (FFA).

With six weeks to go before the grand final, the FFA - which has deemed 30,000-seat AAMI Stadium unsuitable for the decider - is still attempting to convince the AFL to reschedule one of the two games.

Perth's Domain Stadium, Brisbane's Suncorp Stadium, Sydney's ANZ and Allianz Stadiums, Wellington's Westpac Stadium and the Adelaide Oval are all available on Sunday 17 May.

So should title favourite Melbourne Victory earn hosting rights as the highest-placed team to make the final, as unfair as it seems, the governing body would simply move it to the city of the other finalist, if no resolution is reached with the AFL.

But A-League boss Damien De Bohun has revealed if the final ends up being a derby between Victory and Melbourne City - a distinct possibility - it could be played at the MCG on Friday 15 May instead.

"We've had the unfortunate scenario of both Etihad and the MCG being booked on top of our bookings. So we're still working on it," De Bohun said.

"In the event that Melbourne Victory meet Melbourne City, we have the MCG booked for Friday the 15th.

"We have a strong tradition of playing a Sunday twilight grand final because, for travelling fans, for broadcast and everything else, that is clearly the optimal slot.

"But if it comes down to a Melbourne v Melbourne grand final, we will have to look at the Friday."

De Bohun said while a neutral venue wouldn't be the go-to solution, there would be scope to have a more even playing field in certain scenarios.

"We've been very clear that if there isn't a suitable venue in the city of the highest-placed team, we won't hesitate to take it to the city of the other team in the final," he said.

"But if Sydney were second and Melbourne first and we couldn't play in a suitable venue in Melbourne, then it may well be a neutral venue like ANZ for example."

All but two of the A-League grand finals have been played on Sunday afternoon with the 2009 and 2010 deciders played on a Saturday night.