#3 Barcelona 4-0 AC Milan (2013)
Barcelona lost 2-0 to Milan in the first leg, which meant they needed a magical comeback at home to go through to the Quarters. They started the game with their strongest playing 11. The match began with great pace and Barca were attacking more than usual.
It took just 5 minutes for Lionel Messi to open the scoring with a majestic strike from the edge of the opposition box, straight into the top corner. Messi scored again in the 40th minute, this time with a powerful grounded strike drilled into the goal from outside the opposition box.
The Catalans were in a stable situation at half-time. In the 55th minute, it was David Villa's turn to add his name to the scoresheet with a superb curling shot into the far post, assisted by Xavi.
In the injury time, Alexis Sanchez provided a through ball and Jordi Alba, out of nowhere popped up in the opposition area to score one more and complete the comeback and help Barcelona secure their 6th consecutive Quarter-final appearance in the Champions League.