Barca dropped to third place after their stalemate with Sevilla.
"They are a daring, brave and very dynamic team, who have deserved to win both games they have drawn. We'll have to see how we respond after the last match," said Guardiola.
The Barca coach also showed little sign of concern about his side being knocked off top spot, saying: "I don't think losing the leadership creates anxiety, it could do, but there are still 90 points left to play for. We need to think that if we aren't first it's because other teams are doing better.
"What we need to do is look at what we've done wrong."