Sydney Roosters head coach Trent Robinson insisted he was "fine" after being tested for coronavirus.
NRL players returned to their clubs on Monday as preparations continue for the season to restart on May 28.
Robinson, though, was tested for COVID-19 and expects to find out the result later on Monday.
"It's not serious, but I had to do the right thing and get it checked out," he told The Daily Telegraph.
"I went to the doctor this morning to have a test. I'm fine. I should get the result this evening.
"You can't expect everyone else at the club to take all the precautions unless I do it myself."
While there have been more than 248,000 deaths due to coronavirus worldwide, Australia has done well in containing COVID-19.
It has seen more than 6,800 confirmed cases of the virus, including 96 deaths.
The Roosters lost their opening two games of the NRL season, which was suspended in March.