The aggregate scores are locked at 1-1.
"We are sure that the Camp Nou will be full and the fans' support is basic for us -that's why it's important to be playing at home. If we have these two second legs against Madrid and Milan to look forward to, it's thanks to the good work we have already put in. We have had to eliminate other top teams in both competitions, which shows what a good season we have had so far.
"We've been looking at the goals we've let in over recent games and trying to correct that for the upcoming matches. Those goals are everyone's responsibility," said Roura.