Barcelona face Madrid in the second leg of their Copa del Rey semi final, having been unconvincing in a 2-1 win over Sevilla at the weekend.
“We need to get back to playing how we were doing before and not think about what happened in Milan or the Sevilla game,” he said.
“We have to pull ourselves together because there are some decisive games coming up.
“The cup and the Champions League are down to us and we aren’t concentrating on the opposition. Physically the team is in good shape and I am used to playing in all the games. Against Madrid we will have to produce our best football as we will be against a great rival.”