I also have this fear that PSG's experience might happen in Real Madrid. There were a lot of disagreements when Lionel Messi, Neymar, Angel Di Maria, and Kylian Mbappé were in PSG. Each of these players was targeting to win the Ballon d'Or and this caused some friction. Real Madrid is currently having some of the best players in the world and most of them are potential Ballon d'Or winners. Except Carlo Ancelotti manages these superstars well, we might see the same problem that PSG faced.
In that you are right, I believe that the "Mister" has to know how to Manage these types of things that are the problems that can be Carried because most of them are pure stars and it is obvious that everyone wants the best for themselves , they want to Win and be the best , that they can be looking for the Golden ball, well yes ,it is a fact, I believe that Mbappé is Going to leave with Everything and many Players like Bellingham and Rodrigo , but this is an award that for me is very Manipulated , I think that Even so whatever happens it is possible that Messi will win it again, only because FIFA is not a totally Transparent Organization for me, FIFA's Favorites are those who Kneel at its Feet.
Some of the concerns that are currently a big question are whether Mbappe will remain as egotistical as at PSG or now he has to lower his ego because Real Madrid is not the same as PSG. In essence depending on Mbappe adaptation process, we have Vini, Rodrygo and Bellingham, all of whom are the best players and potential future players who will get the Ballon d'Or. In this case, Ancelotti has quite a tough task as well as a challenge to be able to reduce friction between his players. Every player has ambition and that is normal. Therefore I hope Mbappe does not take steps similar to what he did at PSG.
It is a fact and the truth is Unbelievable that almost all the fans think the same as us , Mbappé's ego , that Mbappé is not going to do things wrong because he is an egocentric person, but in part we are forgetting that the Spanish are very jealous of their systems , they will not let Someone else Command them or something like that, I think they will handle that and temper it at the right time, since every Spaniard has his character , the good thing about Mbappé is that they will take advantage of his speed , because I think he runs a lot more than Bale at his best , so now the problem is for Luis Enrique , who has to put together a very big team with high chances of Winning.

Paris Saint-Germain’s Xavi Simons’ future should be decided shortly after the Netherlands crashed out of UEFA Euro 2024 in the semifinals to English this week.
Paris Saint-Germain
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L’Equipe recently reported that Arsenal, Barcelona, Bayern Munich, Manchester United, and Manchester City have all contacted PSG to explore the potential of landing Simons this summer.
Still, it seems that PSG will try to convince the player and his entourage to stay in the French capital at the last minute. Despite the loss to England, Simons scored an impressive goal, showing his potential in a big-time match.
Source:
https://psgtalk.com/2024/07/barcelona-and-bayern-munich-linked-player-set-for-crucial-talks-with-psgs-luis-enrique/