We're underway from Camp Nou in Barcelona, and Pep Guardiola might already be regretting his team selection. It took just 18 seconds for Chelsea to put together a dangerous-looking attack down the right side, where there is no fullback and Javier Mascherano is playing right central defense. An Ashley Cole through ball towards Ramires almost led to a good chance, but it was a bit too heavy and Victor Valdes smothered it. Mascherano might as well have not even been playing.

Don't expect this to happen too often over the course of the game. Chelsea are defending a 1-0 lead on the road, and they'll probably spend most of the game with a flat midfield five and ten men behind the ball, like they did throughout the first leg.

We'll have live coverage throughout the game in our Barcelona vs. Chelsea, 2012 UEFA Champions League StoryStream. For more on the two teams, head over to Chelsea FC blog We Ain't Got No History and FC Barcelona blog Barca Blaugranes.