Patrick Mouratoglou is certain that Nadal will be ready for Roland Garros because it's the most important tournament in the entire schedule for him.
While it is technically possible for Nadal to miss Roland Garros, as anything can happen, one could say that it is the most crucial tournament of the year for him. It is, undoubtedly, the Grand Slam where he has the highest chances of success even before playing a single point, and his absence from the tournament would deal a severe blow to his legacy.
Mouratoglou underlined this in his talk about the Spaniard:
"He knows if there is one he can win, it's this one, more
than any other. So all his program, whatever he's done since the
Australian Open, his number one goal is to win Roland Garros."
The French coach has no doubt that Nadal will be ready for the event:
"So he will be ready. Rafa is a player that progresses
match after match. He needs matches. The older he gets, the less matches
he needs because the more he's mastering his game. Most important for
him will be movement, because it's the base of his game. Originally, a player who was defending a lot, he's not
anymore. He has developed a lot of weapons. But still, movement is the
base of his game."