Madrid are not completely in a slump because they are still in the top ranks and Carlo can still restore Madrid's performance if he finds the right tactics with the current players, Mbappe is not completely bad he can create important goals when needed Bellingham can also add a goal in this match so they can work together from now on for their clubs.
I guess Mbappé had his worse day yesterday since he went into spotlight in his professional career, the missed penalty shootout and the underperformance that was seen throughout the game even when he got the opportunity to play his favorite position after the absence of Vini Jr, he wasn't still on foot to make things happen the best way for the Madrid. Mbappé's performance today was unfit for a star like him and the fame he's gathered over the years now.
I think something is fundamentally wrong with Mbappé's performance since he came to the Madrid, the lack of consistency, low goals scored and weak offensive strategy have grown to be worse for a team who brought him with hundreds of millions of bucks to pull him to the team. Since he came in, the chemistry between the Madrid players have only reduced and Mbappé have been particularly disconnected with the entire team as seen on the viral footage showing the mannerin which the other players treated him with Bellingham ignoring him in the tunnel yesterday.