Xavi has been struggling with a knock in recent weeks, and in Barcelona's last 7 games in all competition,s the Spanish pass master has only completed the full 90 minutes once. He was withdrawn after 69 minutes in the Clasico defeat to Real Madrid at the weekend, and although he probably won't be fit enough to play the whole game here, he should be alright to start.
Cesc Fabregas and Alexis Sanchez could both return to the starting lineup after making substitute appearances at the weekend, though Pedro is also vying for a starting berth.
Villa, Abidal and Fontas remain absent, while Puyol and Mascherano are both one yellow card away from missing the final, should Barcelona make it.
Roberto Di Matteo is likely to recall the many players he rested for the trip to Arsenal at the weekend - there is every chance that he will select the same eleven that overcame Barcelona in the first leg. That is, however, dependent on Didier Drogba recovering from the knee injury that kept him out of Saturday's game.
David Luiz will definitely miss out with a hamstring injury.
Ivanovic, Cole, Ramires and Meireles are the four fit Chelsea players who are one yellow card away from a European suspension.
The pressure is really on for Barcelona. They have lost back-to-back matches for the first time this season - results that have seen them up against it if they are to make it to the Champions League final and also all but handed the La Liga title to Real Madrid. They will be hopeful that their first loss at home in all competitions this season was just a blip and they can return to winning ways in this game.
Chelsea, meanwhile, are unbeaten in 9 games, and have progressed to the final of the FA Cup as well as beating Barcelona in the first leg of this tie. Of course, a trip to the Nou Camp will provide a significantly more difficult test than their other recent games, but given their recent form, and Barcelona's loss to Real, Chelsea will fancy their chances of causing another upset.
Chelsea set out defensively in the first leg of this tie, hitting Barcelona on the counter attack to score the only goal of the game. They will probably do the same again here, but the pitch at the Nou Camp is even bigger and Barcelona are extremely good at stretching other teams in order to create space to play their passing game. They will play with extremely high intensity, pressing Chelsea high up the pitch into giving away possession and hoping to induce an error from their opposition. Barcelona may have lost a couple of games, but there is no reason to panic. They have the best group of players in the world and will have to trust in themselves to get the result they need to make it to the final.
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