The French Open is usually an event that begins Memorial Day weekend. However, in this time of COVID-19, the French Open unilaterally said, "You know what? We're going to take other dates."
They originally said that maybe the French Open would be played the last week in September or the first week in October. That didn't go over so well in tennis.
Now it seems the French Open is moving again. I am told that the announcement is forthcoming. They're now going to try and have the 2020 French Open start the first two weeks of October, moving it forward another week.
This gives their them a chance to have a warm-up tournament. This is all, of course, very optimistic thinking - but this would give tennis a chance for a tune-up event on clay in Europe.
Also, France has a ban on sporting events through September. So this is by necessity. This may all be for naught. It's all get very optimistic thinking. But again, these large events besides Wimbledon that had the insurance policy, these large events really don't want to cancel for 2020. So the French Open keeps pushing and now we are going to see if they can pull this off the first two weeks in October.