Mourinho hints Torres' strengths do not suit a possession-style game.
"We have to try but the football is different," said Mourinho.
"Liverpool was more running into spaces and the way here is more ball at his feet with small spaces to play in. Fernando is not naturally a skilful, creative player but he is a good player, a good professional and it was a good surprise for me the way he works very hard. I believe in Fernando."