Didier Drogba pounced in the third minute of stoppage-time to rescue a point for Chelsea from a breathless and stormy 2-2 draw with Barcelona in the Nou Camp.
Deco opened the scoring in the third minute before Frank Lampard levelled after the break with a superb chip.
Eidur Gudjohnsen looked to have settled the tie against his former club when he put Barca 2-1 up in the 58th minute but Drogba's 10th goal of the season pegged the European champions back.