Madrid's defense is a bit weak this season. And Barcelona has already exploited this weakness. Barcelona has won all three matches against Madrid. Barcelona has scored 4 goals in 3 matches against a strong team like Madrid. This shows that Madrid's defense is very weak. And Ancelotti has failed to take the necessary steps to strengthen Madrid's defense.
Madrid's defense did not play well against Celta Vigo. The possibility that this defense will do well against Barcelona is quite low. Barcelona's team is very strong now. If Barcelona's players are not under the pressure of the Champions League match, then I think we will see Barcelona win this match against Madrid as well.
To be fair to him, the defense has been suffering long term injuries with no good replacements in place. What made matters worse, Real Madrid didn't even bother to shop for any defender in the January transfer window so they kind of deserve the kind of performances they have today
I hear Trent is on his way