Prime Minister of Australia Scott Morrison insisted NRL side New Zealand Warriors had not yet been given permission to enter Australia.
Reports on Friday said the Warriors would fly into Australia on Sunday ahead of a possible resumption of the NRL season on May 28.
But amid the coronavirus pandemic, Morrison said no authorisation had been granted yet.
"That authority has not been provided and no amount of reporting it will change that decision," he told a news conference on Friday.
"That will be made on the basis of the border assessments of the Australian Border Force and they're working through that application, they've received that application and when they're in a position to authorise it, well, they will and that's how that will follow."
Morrison confirmed the national cabinet had agreed on principles for sport and recreation to be released later on Friday.
Australia has seen more than 6,700 confirmed cases of coronavirus, including 93 deaths.