Cape Town - Zinedine Zidane believes PSG are more than capable of overturning their 3-1 quarter-final, first-leg deficit when they face Barcelona in the Champions League.
A Luis Suarez brace and a strike from Neymar saw the Catalans ease to an impressive 3-1 victory in the first-leg at the Parc des Princes, with a Jeremy Mathieu own goal handing a late consolation to the French champions.
The result means Laurent Blanca's side will need a historical performance at the Nou Camp to avoid exiting the competition at the quarter-final stage for the third straight season.
Zidane admits the Parisians are staunch underdogs, but believes the situation will give them the freedom to play without pressure.
"It'll be very difficult for PSG to score three goals at the Camp Nou, but they're a team that's capable of doing it," the Real Madrid Castilla manager told ESPN.
"They have the players to do that, and they are also going to get certain players back. So, in a single game, anything is possible. It's certainly the most difficult challenge they face.
"But as everyone thinks they won't go through, it's at those times that players are capable of anything. I hope for them that they'll have the possibility to worry them."