Real Madrid legend Alfredo di Stefano admits Barcelona are "superior" ahead of tonight's game. Di Stefano rates Barca the better team.

"It will be a very difficult game. Both teams have players who can win them the tie," the 86-year-old revealed to ESPN.

"Barcelona play outstanding football, which they won't change, whether they win or lose. They are superior to everyone because they have about four or five individuals who are outstanding footballers. You can't ignore the truth."