Actually, the match between Al Nassr and Al Ahli is not an easy match because basically Al Ahli can make Al Nassr overwhelmed and make it difficult to win, I agree that with the absence of several core players like Ronaldo, there might be chance for Al Ahli to hold draw and share points.
I don't know the line-up of both teams yet, whether on Al Nassr or Al-Ahli's side. Moreover, regarding Ronaldo being able to play or not, in Al-Ahli's camp I also don't know whether Matthias Jaissle will play Ivan Toney as a starter. This is interesting, at least Al-Ahli can provide fierce resistance because they have newcomers. Not only Toney, but they also brought in midfielders. Although based on the betting exchange Al Nassr is more favored, but it feels like this match will be tough. That is if Matthias Jaissle immediately plays his newcomer, because I am quite sure that Ivan Toney is able to adapt immediately to his teammates at Al-Ahli. It's only a matter of days before these two teams meet, but Al Nassr still has the advantage of playing at home and has a much more competitive team.