Everyone loves a good conspiracy theory. Ronaldo's a giant ego, Mane's form dipped, so bam! Conflict! But let's be real here. Mane's been struggling since Bayern, long before he even sniffed Saudi sand. Not some locker room fight here. It's a guy adjusting to a new league, new system, new teammates, and, hell, maybe even a new damn continent
People always talk about a rumor too much. There is no official statement from the club that Ronaldo and Mane have a problem. As far as I know, both players have no problem because they can show good teamwork when they are playing in the field. If they have a problem, Ronaldo mustn't play with Mane anymore. But in fact, Ronaldo looks happy to play together with him.
Anyway, it is not the only rumor we heard about Ronaldo. You must know the rumor that Ronaldo may leave Al Nassr and join Leverkusen. In the reality, it is just fake news, so we don't easily believe in any rumor. If there is a media spread the rumor, it is also difficult to trust them because some media only want to attract people with fake news.
And Ronaldo being selfish? That's the oldest story in the book. The dude's a goal-scoring machine. He demands excellence, from himself and everyone around him. That ain't a bad thing for a team aiming to be top dog. Al-Nassr ain't stupid. They've got two of the biggest names in the sport up front. They'll figure out how to make it work, even if it means some tactical tweaks or bringing in a few more playmakers to ease the load on Mane
It is normal if Ronaldo has more goals than Mane. Ronaldo is a striker, Mane is a winger. I'm very sure Mane won't be jealous with Ronaldo because he played as a professional player. Sure, if there are people or media saying about the selfishness of Ronaldo, they are probably haters or trying to get attention. We know it is on old story, just ignore it.