The Portugal forward was taken off at half-time in Madrid's 2-2 draw with Barcelona on Sunday after sustaining an injury when he tapped in his side's equaliser after 15 minutes at the Camp Nou.
Madrid sit third in LaLiga and face an uphill battle to finish second, as they trail Atletico Madrid by three points with two games remaining.
Zidane's future could also depend on the outcome of the Champions League final, having come under increasing criticism for failing to challenge eternal rivals Barca domestically. "The worst is Cristiano, because it's just happened, but he's fine".
"Ronaldo, in terms of his injury, is incredible, that's what he has this guy, he is already on the ground, walking, and feeling positive 48 hours later". They have players, who follow their same philosophy and are adapted to their style of play.
"It's a sprain, but there's not damage to the fibula".
Paul Breitner said Neymar will be extremely critical for Real Madrid next season as the German considers the Paris Saint-Germain forwards is poised to move into the Spanish capital.
They are now six points adrift of the top six and are likely to have to win all three of their remaining fixtures if they are to muscle themselves into the pack chasing the pace-setters.
He told his club's official website: "I feel really good now, well recovered and I'm ready to help the team. You are about to see a special match and that is the important factor".
"That goes without saying", he said after revealing that he wouldn't actually be attending the game himself.