AC Milan coach Massimiliano Allegri says they intend to attack Barcelona tonight in their Champions League clash.

Milan will host the first-leg of the quarterfinal at the San Siro.

"We are relaxed. We arrive as one of the top eight sides in Europe, something that has not happened for four years," Allegri said.

"We know that this quarter-final is very difficult, and so we must be ready. The previous two games were quite different, the first more defensive, the second we played with more belief and tomorrow we will need a performance like that again."