Former Arsenal striker Thierry Henry scored an hat-trick in the game.
Guardiola said “I am the first to be surprised. But there is still a long way to go.
“We scored many goals and they did not have many chances. Our group has great solidarity and determined players. We have now created a slightly greater distance between us and Villarreal.”
He added: “It is only December 7 and there is a long road ahead. Bad times will come and I hope that the fans will support us then, because we play for them, not us.”
