Here are the minutes of Chelsea's memorable win at Camp Nou.
First minute: Kick off: Chelsea, but they cannot keep the ball.
Second minute: An over-the-top ball to Alexis Sanchez, who manages to escape John Terry—but Petr Cech gathers.
Third minute: Chelsea's defense is breached in a one-two involving Lionel Messi. Messi's shot is side-netted.
Fifth minute: Scything move by Barcelona involving Messi and Sanchez through Chelsea's defense, answered by rearguard action from Chelsea. Garry Cahill appears to stretch his hamstring.
Eighth minute: Barcelona goes one-two, one-two through the heart of Chelsea's defense.
10th minute: Barcelona execute a diagonal movement from the right of the final third to the left. Messi, Cesc Fabregas and Iniesta are all involved. Iniesta's cross seems destined for a head-in but for a timely intervention by a Chelsea defender.
12th minute: Cahill is subbed, and José Bosingwa comes on. Barcelona are camped around Chelsea's penalty area.
13th-15th minute: There are multiple skirmishes as Chelsea try to play out of their own half.
16th minute: A clash results between Victor Valdes, Didier Drogba and Gerard Pique Pique when Valdes comes out to punch away the ball from Drogba's threat.
19th minute: Chelsea are carved open. Messi's shot is parried by Petr Cech. A rebound shot is blocked.
19th minute: Another attack by Barcelona results in another shot side-netted, this time by Isaac Cuenca.
20th minute: A shot on goal by Javier Mascherano misses by few inches.
24th minute: Didier Drogba forays forward on his own down the left flank and on the by-line. He side-nets.
25th minute: Pique is unable to continue, so on comes Dani Alves.
26th minute: For Barcelona's first corner, Carles Puyol tries to head, but the ball goes into touch on the right.
30th minute: Barcelona's second corner is taken short. Andres Iniesta's shot outside the area is skewed wide.
31 minute: Chelsea venture into the Barcelona half. Barcelona come away with the ball. Mikel Obi fouls Alexis Sanchez and is yellow-carded.
34th minute: Barcelona's third corner is headed away by Drogba.
34th minute: A goal develops from the corner which Drogba headed away. It falls to Dani Alves who passes right to Cuenca, whose cross Busquets bundles home. Goal: Barcelona.
36th minute: John Terry is red-carded for an off-the-ball incident. He knees Alexis Sanchez when he thinks the referee isn't looking, but the fifth official sees him. It is a clear red card. Silly Terry.
43rd minute: A sweeping move from Barcelona from their own half results in Cuenca bringing away the ball then finding Sanchez. Sanchez passes to Messi, and Messi passes to Iniesta who scores. Goal: Barcelona.
44th minute: Ramires earns a yellow card. Chelsea are now coming out to try to find a goal. This is opening up more space for Barcelona.
45th minute: Ramires scores out of nowhere. Frank Lampard is involved. He releases Ramires, who chips over Victor Valdes. Advantage: Chelsea. Goal: Chelsea.
45+2: A Barcelona corner comes to nothing.
46th minute: Fabregas lays the ball off to Iniesta. The shot is blocked for a corner.
47th minute: Penalty! Didier Drogba appears to foul Cesc Fabregas in the penalty area. The official behind the goal seems to be the one calling it. Messi misses, hitting the crossbar.
48th minute: Branislav Ivanovic is given a yellow card, which seems to be for dissent involving the penalty.
49th minute: Iniesta is yellow-carded.
53rd minute: Alves crosses for Sanchez to head. It's just wide.
56th minute: A long-range shot from Drogba misses from his own half after bringing away the ball.
57th minute: Juan Mata is subbed. Salomon Kalou comes on.
58th minute: A free kick by Barcelona is headed wide by Puyol. Petr Cech is booked for time wastage.
61st minute: Chelsea is carved open, and Cech blocks a shot from Cuenca.
63rd minute: A corner is forced by Drogba on Mascherano. Ivanovic wastes a free header.
65th minute: A corner from Barcelona is taken short. Another corner is taken, again short.
70th minute: Messi gets a yellow card for pulling Lampard back after losing the ball.
73rd minute: Fabregas is subbed for Seidu Kaita.
77th minute: Busquets fires over in a good position to score.
79th minute: Drogba comes off. Torres comes on.
81st minute: Goal... for Barcelona, but it is ruled offside.
82nd Minute: Messi surges forward, resultant shot hits the post after Cech's finger tips touches it.
86th minute: A Barcelona corner comes to naught.
89th minute: A shot from Mascherano is parried away by Cech.
90th minute: Torres rounds the keeper and scores. Chelsea are through to the final! Goal: Chelsea.
Congratulations to the Blues on their advancement.