The Basque club's trainer spoke highly of the opposition despite a heavy defeat, and insisted that the Catalans have not changed tactically from Guardiola's era
Goals from Gerard Pique, Adriano, Cesc Fabregas and a double by Lionel Messi ensured that the Blaugrana remained 11 points ahead of Real Madrid in the table, whilst also breaking the record for the best start to a Liga season in the process.
The Argentine trainer maintained that his side simply could not match Barcelona, whilst insisting that there was no difference between the current side and the one managed by predecessor Pep Guardiola.
"We tried to play football, and build quick attacks without losing possession," Bielsa told reporters after the game.
"The big difference between them and us is that our attacks never thrived. Every time we lost the ball, we felt dizzy trying to dispossess them."
"They are the same [comparing Guardiola and Vilanova's Barcelona sides]. The same power, the same style, and the same sense of constant unpredictability."
Athletic Bilbao encounter Sparta Prague in the final round of Europa League group fixtures on Thursday.