Real Madrid chief Emilio Butragueno says their Champions League semi with Bayern Munich will be unpredictable.

Real are wary of the individual quality at Bayern.

"There are many elements to take into consideration," said Butragueno.

"Firstly there is history. Bayern are a team with great pride, who have top quality players such as [Arjen] Robben, [Franck] Ribery, [Thomas] Muller.

"Secondly, we have to play our best game and not make mistake. Hopefully it will inspire us to the final."