Here, Sports Mole dissects the 90 minutes of action between the two Spanish rivals.
On target: 4
On target: 9
Was the result fair?
It would be difficult to argue that Barcelona did not deserve to secure their spot in the semi-finals this evening. The tie was so delicately poised from the first leg, but you never thought that the Catalan outfit were vulnerable. Even when Malaga levelled the tie 20 minutes from time, Barcelona regrouped and secured the win with two late strikes.
The Malaga supporters will certainly not have too many complaints about their team's performance this evening. They matched Barcelona for large periods of the evening, but just came up short when it really mattered. They certainly missed the imagination of Isco, while their forward players did not really influence proceedings until the final stages. They gave it everything which is all that the fans will ever ask for.
Barcelona were not at their best in the first period as they struggled to find their passing rhythm, but you always felt that they were capable of turning on the style. That was the case as they scored early in the second half to give themselves a huge chance of making the final four. The fact that it wasn't one of their best performances and they still scored four goals against the second-best defence in La Liga speaks volumes.
Sports Mole's man of the match
Andres Iniesta: The Spanish maestro was just magic this evening. If it wasn't for Messi and Cristiano Ronaldo then he would be the best player in the world. He scored his side's third of the evening and was their main creative force once more.
Biggest gaffe of the match
Malaga simply switched off in the early stages of the second period as they allowed Pique to drift into space and fire Barcelona into a 2-1 lead. It came at a crucial stage in the tie and ultimately had a major effect on the overall result.
Antonio Mateu had a bit of a mixed bag this evening. He was called into action on a number of occasions as the tackles continued to fly in, but he was prepared to keep his cards in his pocket for the most part. He also rightly turned down a couple of penalty shouts in the first period.
Malaga: Malaga return to league action on Sunday when they travel to face struggling Real Mallorca.
Barcelona: The Catalan outfit also resume league action at the weekend as they host lowly Osasuna on Sunday.