Real Madrid general director Jorge Valdano has made it clear that the Spanish powerhouse still believe they have what it takes to eliminate Barcelona to make it to the final of the Champions League.
The Whites were beaten 2-0 at home in the first-leg and face a hugely complicated task to overturn that defeat in the return on Tuesday.
"Madridistas always believe in comebacks. If there was just one team that has the habit of being heroic, it would be Real Madrid," Valdano was quoted as saying on the club's official website.
"Nothing should deprive us of feeling hope and excitement for Tuesday's match at Camp Nou."
Brazilian playmaker Kaka is equally positive ahead of the fifth Clasico of the season, saying: "We expect to play a great game. We have faith. Real Madrid can never give up a fight.
"We are in a complicated spot in this tie, but we'll have to go for it at Camp Nou. We're hopeful. We will try to do a good job and look for a victory."
A Lionel Messi double in the second half last Wednesday gives Barca the advantage.