Real lost the first-leg of their semifinal 2-1.
"Real Madrid always play to win and the team is ready to respond in a game in which the crowd will surely want to help," said Mourinho.
"I believe a draw would have been fairer, but that's football for you: whoever scores wins. It doesn't matter if you do so in the first or last minute. This result isn't awful because it doesn't force us to make an historic comeback at home. We'll have to earn a normal result and I think we're ready to respond. We'll start preparing for it after Saturday's match.
"We wanted to win tonight. We conceded a goal from a set piece in the first half, during which we played our best. We then drew the score and we felt it was difficult to win even though we did our best at times. Both sides made mistakes and Bayern scored when it seemed the game would end in a draw. Their first goal was offside, but I cannot criticise the referee for that. I don't feel negative about it."