Bayern Munich forward Thomas Muller has admitted that it will now be difficult for his team to make the Champions League final.

Bayern were beaten 3-0 at Barcelona in the first leg of their semi-final on Wednesday, leaving the German outfit with a mountain to climb in the return match.

Muller has insisted that Bayern will 'keep their heads up', but has conceded that progression is unlikely.

"In the second half I had the feeling that we controlled the game better. It is not easy to play here, but I did not feel that we could lose 3-0. But we are Bayern, we keep our head up," Muller told UEFA.com.

"The fact that it now runs as it did against Porto, it is not expected, but we will do everything again on Tuesday. But it would be a sensation if we came into the final and we will do everything we can in Munich."

Bayern did not have a single shot on target at Camp Nou.