"To the pessimists I would say that they don't understand football"

Real Sociedad coach Imanol Alguacil believes that his side will have a chance to come back from behind against PSG if they play as they did last time out and said that those pessimists who believe the San Sebastian outfit have no chance of success "don't understand football".

"There are always surprises in any tie and I have no doubt that if the team behaves as it does tomorrow, we will have the chance to pull this off," Alguacil told Tuesday's official pre-match press conference.

The Basque coach praised the PSG squad that "if there is one thing they have plenty of, it's good players". "Obviously, Kylian Mbappe is unique, but if he doesn't play, someone else will play who is almost as good. They have a lot of talent, both in terms of speed, technique and individual quality," added the coach.

Real Sociedad face this game at their worst physical stage of the season and Alguacil said that "it's not easy, as many factors come together, such as mental and physical factors, which mean you're not as decisive as you were three months ago".