By ESPNSTAR.com staff
The heated match between the two arch-rivals ended in a 2-2 draw with Montoya coming on to replace an injured Dani Alves.
The 21-year-old gave a good account for himself and even had a chance to score in the dying minutes of the game.
After the match, a visibly annoyed Pepe had remarked that Andres Iniesta was "doing theatre" in the game.
Montoya defended his squad's behaviour by saying, "We are not theatre people. I think that everyone can see that, although if we were like that it is because they kick us."
And he revealed that he was personally happy with his performance at the Camp Nou in the most high-profile match of his brief career.
"To score would have been an amazing feeling but I'm very happy to have played at the Camp Nou. To play in a game like this in-front of these fans is spectacular.
"Personally, I tried to do what I know and stuck to my own game. I felt very comfortable on the pitch despite it being an El Clasico."
Barcelona are currently lacking adequate cover in defence with Carles Puyol, Gerard Pique and Dani Alves all out injured. But Montoya believes that coach Tito Vilanova can rely upon the players at his disposal in order to help maintain their impressive start to the new season.
"Anyone who plays in the middle can do so very well. We have Mascherano, Song, Bartra. There are always people who can come in and do as well if not better."
Barcelona play Deportivo on October 20 after the international break at the Riazor Stadium.