The Brazilian full-back also admitted he would like to win trophies with Barcelona.
“First of all, I want to win trophies with Barça, like I did with Sevilla,” he told Sport.
“Barça have started out on a new project to move forward and this is a big club that has to win things and I am here to help.
“On a personal level, I have the dream of being considered to be one of the best players in the world.
“Last year I was on the list and I dream of winning it one day, but I know it is very difficult for a full-back. But nothing is impossible.”