The French Top 14 rugby championship has been suspended until at least 15 April due to coronavirus worries, the National Rugby League (LNR) said on Friday.
The next fixtures in the tournament were set for 21-22 March but the competition organisers have put the season on hold.
Second-tier ProD2 has also been stopped.
"From the moment that the President (Emmanuel Macron) explained that the epidemic was accelerating and that general awareness and strong measures were needed to avoid the spread of this pandemic, it seemed logical to temporarily suspended our two professional competitions," LNR president Paul Goze told AFP.
"There is no resumption date. There is a first date set for 15 April but it doesn't seem very credible to me that all the measures will be lifted by then...
"The objective is to play the semi-finals and final on the scheduled dates."
France's final game of the Six Nations set for Saturday in Paris was postponed last week following the outbreak.
Amateur rugby in France has also been stopped for the time being because of Covid-19.