Barcelona coach Pep Guardiola admits they must "learn" from their shock Champions League aggregate defeat to Chelsea.

The defending champs are now out of the competition after a dramatic night at the Nou Camp.

"It wasn't meant to be this year. The first thing that goes through my head is immense sorrow. Forgive me if I'm not clairvoyant, but I have the perception that with time I'll say: 'we played an excellent tie'," said Guardiola.

"We played exceptionally well for 180 minutes, we did everything we could to be in the final. We've never worked this hard to be in a final."

He added: "we have to know what we did incorrectly and correct it." The Barça manager analyzed the moments after his team took a two-goal lead: "with the 2-0 we didn't stop, we kept on attacking. No one can have everything. It can be a lesson that you learn with time."