There's no problem between Vinicius and Mbappé. This is just news that's been constantly pushed by the media without any clear explanation or evidence. It's simply because Real Madrid's attack played poorly last season, leading many to speculate that Vinicius and Mbappé don't have a good relationship. But I don't think so.
I'm also confident that Vinicius and Mbappé won't be sold; this is Real Madrid's long-term plan for their attack.
Under Xabi Alonso, we don't know what strategy he'll employ, but what's certain is that Vinicius and Mbappé will remain in their positions and both will continue to play in Real Madrid's starting lineup.
This is not about media pushing anything about the two players, it's about what we saw during their play together in almost every game. I'm not saying there's problem between Vini and Mbappe but judging from what we normally watch, something is not actually right between the two of them because you could clearly see the passion to dominate and the exhibition of selfishness which immensely contributed to the attack failure last season. Both Vini and Mbappe are good assets for any team but they can only achieve success together only if they unite themselves and do away with their personal ego.