It is common for football fans to wonder about relationship between players especially with Mbappé past at PSG with Neymar and Messi. People are now watching to see if he has similar issues with Vinícius Jr. at Real Madrid. When two star players who are used to being best on team join up it can take time for them to work well together. There is no real proof of fight but fans and experts are paying close attention to how they play together on field. Good partnership between them will be very important for Real Madrid to win games.