Barcelona coach Pep Guardiola has admitted Chelsea is now the favorite to reach next month's Champions League final following the Blues' 1-0 win at Stamford Bridge on Wednesday night.
Didier Drogba's goal in first-half stoppage time was enough to clinch victory in the first-leg encounter.
And though Barcelona would hope to score at least once in Tuesday's return at the Nou Camp if they can match their incredible tally of 24 chances, by gaining the initiative without conceding an away goal, Guardiola believes the Premier League's sole survivors have the edge.
"One-nil is a very good result for them," said Guardiola. "They are the favourites."
Aiming to become the first side to retain the trophy in the Champions League era, Guardiola claimed Barcelona were not surprised to encounter a Chelsea side that spend long periods of the game on the back foot.
Instead, he felt the burden of responsibility lay with his own team for not making the most of their opportunities.