Chelsea 1-0 Barcelona - Messi, Fabregas, Puyol, Xavi train before the game 18-04-12
Didier Drogba gave Chelsea a precious lead to take to the Nou Camp for the Champions League semi-final second leg as his goal beat holders Barcelona at Stamford Bridge.
The Catalans dominated possession as well as creating a succession of chances - but Drogba struck in first-half injury time to give interim manager Roberto di Matteo's side an advantage to protect in Barcelona next Tuesday.
Chelsea were forced to mount a resilient rearguard action in the face of Barcelona's famous passing "carousel", but Drogba converted their one clear chance to reward the outstanding defensive work of Gary Cahill, Ashley Cole and captain John Terry in keeping Lionel Messi and co at bay.
Barcelona produced evidence of the huge threat they will pose in front of their own supporters as they enjoyed 72% of the possession, but Chelsea will be elated at not only claiming the victory but also keeping a crucial clean sheet.
Alexis Sanchez hit the crossbar for Barcelona early on and Pedro hit the post in the dying seconds - while Cole cleared off the line from Cesc Fabregas. Goalkeeper Petr Cech also saved well from Messi and Carles Puyol as Pep Guardiola's team tried every avenue in an attempt to break Chelsea down.
In the end, Chelsea's organisation and discipline was rewarded but Di Matteo knows they will have to produce the same - and more besides - in the Nou Camp to confirm a meeting with either Real Madrid or Bayern Munich in the final in Munich next month.
Di Matteo clearly saw Drogba's power as a potential threat to a Barcelona defence stripped of Gerard Pique - but he barely caught sight of goal in a first 45 minutes in which the Catalans exerted their technical superiority.
Chelsea were riding their luck as early as the eighth minute when Andres Iniesta played in Sanchez. The Chilean's lob left Cech stranded but his effort bounced back to safety off the bar.
Fabregas was the guilty party