AC Milan coach Massimiliano Allegri says they'll need calm heads for their Champions League clash at Barcelona.

Milan go to Spain defending a 2-0 aggregate lead.

"We want to stand up to Barcelona," he told a Press conference. "I think we will have to perform better than we did in the first leg [if we want to win].

"Tomorrow night we will have to improve. The boys will need to be good in attack and make the most of their opportunities.

"We must remain calm - this is a game like any other."