Honestly It probably could have gone both ways, then again these issues are nothing new.... you just have to look at Real Madrid matches to notice that this happens more often then you think... IF there is a team out there with beneficial outcomes in their favor its going to be Real Madrid... especially in Champions League Knockouts.
well... no
Looking at it over and over again from the only available replay (how convinient not to show it from any other angles. I guess there's only one camera on the field
) I am more and more sure that it's a push in the back, therefore a penalty for Benfica. Whether they score it or not, Barcelona wouldn't had the chance for a counter attack in an empty field and win the game. There's no need for lame excuses. Enjoy the win boys, just don't forget it was a gift from the ref.
Yes, Real Madrid has had their fair share of giveaways in CL, but historically it's not certain which club has more.