AC Milan have a mountain to climb in their Champions League clash against Man United, having lost 3-2 at the San Siro in the first leg.

Their former coach, Carlo Ancelotti, has faith that Milan can put in a good performance, but says that it will take a monumental effort to come away with the win at Old Trafford.

"[Milan] will believe in achieving anything, even something on the limits of impossibility," Ancelotti told Tuttosport.

Roma coach Claudio Ranieri shared a similar assessment in his interview, stating that Sir Alex Ferguson is experienced enough to weather what the Rossoneri may throw at him.

"He will not play all-out attack to win. You'll see that he will wait for the right moment to deliver the knock-out blow. Milan will have to play the perfect game to get past Old Trafford," he said to Il Giornale.