I think there's bad blood between the two, if we go into the Vini and Mbappe topic.
i am no expert, but i see that both have a tough and prickly character and therefore it is difficult for them to meet halfway.
Between the two, the one i don't like is Mbappe.
Look at this and explain to me why you say bad blood between the two players.

I hope you really look deeper into the closeness between the two players, and what you're saying is completely wrong. Since Mbappe first arrived, Vinicius has been trying to provide support for Mbappe, supporting him in scoring, and both players share the same commitment to working together solidly to achieve success for Madrid.
Even before Mbappe joined Madrid, a few persons were mentioning it that they hope the two will be able to get along and even at a point when he just joined the team and began training with them, some blogs were already watching closely to see if they are getting along already or still have some slight rifts they should talk about but the truth remains that they were not perfectly getting along earlier, it may not be considered a bad blood but that was the reality last season and we are hoping it is very different this season, they can come together on the pitch to celebrate in the spirit of sportsmanship but it is different if they are close enough and getting along really good.