What is clear is that the two teams know each other both in terms of tactics and player character. So maybe there are some surprises to be expected from that semifinal even though there is a possibility of a draw in my opinion. I only believe Barcelona will try to get a goal to increase the chances of qualifying for the final, but I also think Real Madrid has learned a lot from its last few El Clasico defeats from Barcelona.
Xavi has proven that beating Real Madrid both home and away is possible, even when Barcelona lose control of their game. While in the last EL Clasico, Barcelona also managed to look stunning with a win and good game control. Camp Nou will be a witness, Barcelona needs supporters to increase the team's confidence. Even if you don't think so, but let's look forward to it.
Both teams are in good form ahead of El Clasiko, so there will be some surprises in store for the match, it looks like Rudiger and Ferland Mendy are out of the game due to minor injuries, while the currently available player is Alaba, so far Ancelotti prefers Rudiger at centre-back to help out in defense and Camavinga will replace Mendy. If it is true that the two players fail to appear then Real Madrid's defense will experience a little rotation and it is likely that Ancelotti will have to maximize the midfield.
Head to Head in the last five matches Barcelona has excelled and this will be a big capital for them, plus the match will take place at Camp Nou. But if you look at the readiness of the two, Real Madrid also has the opportunity to turn things around and will secure victory while ensuring qualification for the final. I'm sure Ancelotti will surprise this match and hope it will be a tense match.