Andy Gray

The other day somebody asked me what I thought were the three things you needed to win the Champions League. "Xavi, Iniesta and Messi," I replied. Joking aside, Barcelona are of course the outstanding team in the competition this year, though their tie against Arsenal ended up being tighter than many would have thought. With 20 minutes to go, it was Arsenal who were going through, let's not forget, and Barca did benefit from a pretty harsh decision when Robin van Persie received his marching orders. But those are discussions for another day and Pep Guardiola's men played really well over the two legs and probably deserved to go through. It sounds like an obvious thing to say, given they're the 2.32 favourites to win the competition, but they really are the team to beat. You need...