Opposition Leader Luke Foley has ridiculed suggestions Allianz Stadium is a potential death trap, claiming the government's push to knock down and rebuild the venue could jeopardise the 20-year commitment to stage NRL grand finals in Sydney.

As revealed by Fairfax Media, Sports Minister Stuart Ayres is expected to ask cabinet for more than $2 billion to knock down and rebuild both Allianz and ANZ stadiums on Thursday. It's hoped the move will finally provide clarity around funding in the protracted stadium war, although it's unclear if there will be an official announcement or an indication of which venue will be done first.

Opposition Leader Luke Foley has slammed suggestions Allianz Stadium is a potential deathtrap. Credit:Lumapixel

NSW premier Gladys Berejiklian has stated she is not wedded to the $1.6 billion figure originally pledged by predecessor Mike Baird, although it remains to be seen if the money required to rebuild both venues from the ground will be forthcoming.

The NRL has stated transforming ANZ Stadium into a world-class rectangular stadium must be the priority, with the commitment to staging grand finals in Sydney contingent on that being the case.