Barcelona striker Robert Lewandowski says they shouldn't dwell on their Champions League defeat at Bayern Munich.

The Pole drew a blank on his return to his former club on Tuesday night.

He has gone into the game on the back of nine goals in six games for Barca.

Lewandowski posted to social media: "It's been a tough night. Now is the time to focus on the future."

Barca coach Xavi said of the striker after the 2-0 defeat: "I don't think the pressure could have been able to him, he has enough maturity and experience in this type of match. It has been a lack of effectiveness. It's football and this happens, and it has happened to us in the stadium where it couldn't happen."