Rugby Australia chief Raelene Castle said she was confident a re-energised Super Rugby and Rugby Championship would be enough to ensure the financial security of the game in Australia after Thursday's news that World Rugby's Nations Championship proposal had been killed off.

The failure to get a new world league off the ground has sent the southern hemisphere's SANZAAR nations back to the drawing board but was particularly unsettling in Australia, where the troubled finances of pay-TV broadcaster Foxtel have already led to budget cuts and redundancies in the rugby and football departments at Fox Sports.

Rugby Australia chief executive Raelene Castle is confident the game's financial future is secure. Credit:James Alcock

Castle, however, said RA's conversations with its longtime broadcast partners had left her confident the SANZAAR model could deliver a stable financial footing for the game in Australia.

"I am, I am because we have to be," she said. "That’s the work we’ve been doing in parallel with World Nations Championships. We are confident that we will offer an option for broadcasters across the SANZAAR network that will see us in a strong position.