Barcelona sports chief Andoni Zubizarreta has warned against complacency after their Champions League draw.
Barca have been grouped with PSG, Ajax and APOEL.
"When you come to this draw, you know you are always going to be drawn against a big team," Zubi told his club's official website.
"If you get over-confident, any team in the Champions League will make it hard for you. We're going to be facing three very different styles of football.
"We've played PSG before. It'll be a great game. They're a great team both in terms of individuals and as a unit.
"But this group isn't just about PSG. Ajax have shown us before how good they can be. APOEL fight hard.
"Some very big teams have already found out just what a difficult opponent they are in Europe.
"These are games where every team has the right to dream. We have our dreams, and they all have their own."
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