I don't see why this match should be seen as an opportunity for revenge....A few refereeing decisions cost us the match in 2009, not Barca. They just did their job, and did it well considering they were reduced to ten men. What I want to see is a testament to our history with them: Closely fought matches, and exciting ones at that.  Both teams have knocked each other out several times over the past decade; Let's just hope 2012 is our turn to do so. http://www.guardian.co.uk/football/gallery/2012/apr/05/chelsea-barcelona-european-clashes-in-pictures#/?picture=388339036&index=0