Lionel Messimay be the star of this Blaugrana team and he is likely to thrill and delight fans again as usual. But the key to this contest lies right in midfield engine room. Xavi will be supremely instrumental in dictating the rhythm and direction of the game. His team-mates will also be relying on him to retain possession as much and as long as possible to deprive Chelsea of the ball. In-form Andres Iniesta will be expected to carry the team should Messi be completely marked out of the game.

Chelsea

It will indeed be an enthralling contest to watch Frank Lampard square off with Xavi for midfield supremacy. Lamps ability to score goals from deep could have a significant impact, especially if the forward line is starved of service. While he will provide the attacking menace, Michael Essien will be vital in stifling Barcas various number of threats. It will also be up to him to bring the ball out of defence and distribute it forward as quickly as possible.

PREDICTION

Barcelonas secret weapon will be the intimidation factor. Many teams have come to the CampNou and they have shown Guardiolas men far too much respect. Hiddink would do well if he can prevent that from happening to his side.

For Barca, keeping a clean sheet will be more important than scoring an avalanche of goals. The Blues, meanwhile, are aware that they will more likely than not be overwhelmed in Catalunya. Their main aim will be to settle the tie back at StamfordBridge next week and as such away goals will be extremely vital, as they will feel confident of shutting out the Blaugrana in London.

The Spaniards have insisted that they will not change heir attacking style of play while Hiddink has promised not to sit back. This match looks delicately balanced and it could all come down to one tiny mistake either way. But for the first leg, the hosts should have enough firepower to nick a narrow win.

Barcelona 2-1 Chelsea