That's quite some confidence given that is only two points ahead, they are playing away from home and Atletico Madrid has the best defense in the league. Additionally, Mbappe is injured. That game is going to be very hard for Real Madrid as Atletico is kind of the underdog and has less to lose in this game. The winner of the matchday could clearly be Barcelona if either Atletico wins or they end the game with a draw.
Even though I know that Atletico has a good defence, I don’t think you will have the expectations that Real Madrid can lose against Atletico Madrid. It is very clear; we all know how Real Madrid plays their game, even though they sometimes wait till the dying minute for them to get their two goals or more. I don’t thinK Atletico Madrid will be able to have the game so easy in the way you are thinking that even mad you to say is either they win or go on a draw.
Talking about mbappe is not the last hope for Real Madrid that you will think just because he is injured then they will definitely lose the game or take the game on a draw. There are other many other players like Vinicius, Bellingham, and others, so I still have potential on them.