The NRL will lock fans out of stadiums from next weekend after Prime Minister Scott Morrison banned all non-essential public gatherings of greater than 500 people from Monday.

Greenberg held a phone hook-up with all 16 club bosses on Friday afternoon, where sources have said the CEO declared all games after the opening round would be played in empty stadiums.

The new Townsville stadium.

But ARL Commission chairman Peter V'landys has assured clubs they will not be financially devastated by the lockout, flagging grants to cover the loss of millions in match-day revenue.

"We started looking at financial implications a week ago because we want to see the clubs and the game in a healthy financial position," V'landys told the Herald. "We don't want any of the clubs to be financially affected. We will wait and see what the scenario is but we will provide financial relief through grants to the clubs.