Barcelona midfielder Xavi Hernandez has praised Milan after the Rossoneri defeat the Spanish side 2-0 in the Champions League last night.
Goals from Kevin-Prince Boateng and Sulley Muntari gave the San Siro side a 2-0 first-leg lead against the Blaugrana.
And the Spain international has conceded that it will be tough to overcome Massimiliano Allegri's men in the second game.
“We let in two goals that could have been avoided,” he told reporters. “The result is a very bad one, but this team has never given up.
“In the second half we did not play as we normally do, whereas Milan had the game of their dreams.
“We know it's not going to be easy to get through to the next round, but we will try.
“We have to be more united than ever.”