Benfica are good, but not that good, and if I remember correctly were only 3rd in Portugal last year. Despite the injuries and weak squad it is within the team's ability to win and I hope they do not think the things we are saying in this thread.
The bookmakers seem to think we are the big favourite here, pricing Benfica at around +400/4/1. Along with a packed Camp Nou and higher morale a win is entirely possible.
Xavi must make sure the team is tightened up defensively and gets their transitions right, not to over extend in attack, and to keep a cool head if we are under pressure.