The Champions League semi-final as it happened.
Goalflashes and major incidents (all times BST):
2136: FULL-TIME Chelsea 0-0 Liverpool
It's all over and Liverpool will be delighted to come away from Stamford Bridge all-square.
Less clear-cut chances in the second half but one blow for Liverpool as a booking for Xabi Alonso rules him out of next Tuesday's second leg.
2135: Liverpool make their final substitution with Luis Garcia going off and Vladimir Smicer coming on.
2134: Liverpool waste a corner when a short pass back to kicker John Arne Riise finds him caught offside on the goalline.
2133: Ninety minutes comes up on the clock and three extra minutes are signalled.
2132: Steven Gerrard has a go from 30 yards out but his effort flies wide.
2130: Xabi Alonso is ruled out of the second leg after he is booked for a foul on Eidur Gudjohnsen.
2129: Liverpool make their second substitution with Harry Kewell making his first appearance since the Carling Cup final after recovering from injury - with Igor Biscan making way.
2127: Jerzy Dudek firmly punches clear Arjen Robben's curling right-wing free-kick.
2125: Mateja Kezman is involved once again - this time as he has a half-chance inside Liverpool's area but a perfectly-timed challenge by Jamie Carragher clears the danger for Liverpool.
21:21 Within 60 seconds of arriving in the fray, Mateja Kezman receives the game's third yellow card for a tackle from behind on Djimi Traore.
2120: Chelsea's second substitution as Mateja Kezman replaces Joe Cole.
2119: Almost a very embarrassing moment for Jerzy Dudek as a harmless backpass suddenly violently changes direction and for a minute looks as though it might go in.
2115: Arjen Robben frees Didier Drogba but Jamie Carragher nicks the ball off his toe to concede a corner.
2111: Djibril Cisse almost makes a sensational start when he is freed on the right of the Chelsea area but he hammers his shot into the crowd behind the goal.
2108: Liverpool make a change with Djibril Cisse coming on for Milan Baros.
2103: Arjen Robben almost makes an immediate impact as his inswinging right-wing corner is met by John Terry, but he cannot get enough power on his header to direct it goalwards.
2101: Joe Cole follows Biscan into the referee's notebook after a clash with Djimi Traore.
Before play restarts, Arjen Robben is introduced with Tiago making way.
2059: Igor Biscan receives the first yellow card of the night. He commits a foul and then kicks the ball away and is punished by the referee.
2057: Play stops to allow Didier Drogba to allow treatment after he is caught in a challenge with Igor Biscan.
2052: Joe Cole winds his way into the Liverpool box from the right but as he prepares to shoot, Sami Hyypia makes a superb saving tackle.
2050: Frank Lampard tries his luck with another long-range free-kick but it is blocked by Jamie Carragher.
2049: As Chelsea win a free-kick, excitement mounts as substitute Arjen Robben begins warming up on the touchline.
2048: The action resumes with Liverpool kicking off.
2032: HALF-TIME Chelsea 0-0 Liverpool
An entertaining first half comes to an end with no goals but plenty of chances.
Frank Lampard missed Chelsea's best while Petr Cech denied Milan Baros at the other end.
2031: The fourth official signals a minimum of one minute's stoppage-time.
2029: Another chance for Chelsea as Liverpool fail to clear and the ball falls to John Terry but he cannot get any power in his shot and it rolls harmlessly wide.
2027: Frank Lampard takes a free-kick 25 yards from goal on the left but Jerzy Dudek easily plucks it out of the air.
2024: Petr Cech saves Chelsea as he makes a superb fingertip save from Milan Baros' goalbound header from Steven Gerrard's right-wing cross.
2022: Luis Garcia tumbles inside the Chelsea area as he goes past Glen Johnson but once again referee Alain Sars is not interested. As play continues, Garcia gets the ball once again but this time fires past the post from distance.
2019: Djimi Traore hits a shot harmlessly past Chelsea's far post from 20 yards.
2016: Didier Drogba heads high over the bar after rising to meet a left-wing corner.
2014: Chelsea win a corner after Frank Lampard's snapshot from the edge of the area deflects off the helpless Jamie Carragher.
2008: Another gilt-edged opportunity goes begging at the other end as an unmarked Frank Lampard somehow blasts the ball over the bar from six yards after Joe Cole heads back William Gallas' left-wing cross.
2004: John Arne Riise has a great chance for Liverpool as he collects a pass inside the Chelsea area and beats two defenders before firing his shot straight at Petr Cech.
2002: Milan Baros hurts his arm as he clatters into an advertising hoarding after a challenge with Ricardo Carvalho.
1959: Didier Drogba is involved again as he wins the ball inside the Liverpool area but he blazes the ball wide of the far post when well-placed.
1958: Didier Drogba goes down in the Liverpool area as he challenges Sami Hyypia for the ball but the referee waves play on.
1957: The first shot of the game from Joe Cole as he wins the ball on the right and cuts into the Liverpool area but his weak shot is no problem for Jerzy Dudek.
1954: A deep right-wing cross by Joe Cole is cleared away from the lurking Eidur Gudjohnsen by Jamie Carragher.
1953: A cagey opening by both sides sees neither side create an early chance.
1952: A worry for Chelsea as captain John Terry shows some discomfort from a possible ankle injury.
1949: Xabi Alonso hoists a hopeful ball into the Chelsea penalty area but it drifts harmlessly out for a goal-kick.
1946: Chelsea get the first ever all-English Champions League semi-final under way at Stamford Bridge.
1940: England colleagues John Terry and Steven Gerrard shake hands in the tunnel as the players line up to prepare for entering the pitch.
1915: The atmosphere is building inside Stamford Bridge as the players warm up on the pitch.
The capacity crowd includes Conservative leader Michael Howard, a Liverpool fan, who told BBC News 24: "We're just two games away from the final and another game away from the Champions' League trophy and I'm sure we can do it."
Worldwide interest in the game is immense with over 200 countries showing the television pictures of the game.
The overall winners after next Tuesday's second leg play either AC Milan or PSV Eindhoven in the final in Istanbul on 25 May.
Team news:
Damien Duff has failed his fitness test and will not play for Chelsea, while Arjen Robben also misses out and is on the bench. Tiago and Joe Cole support Didier Drogba up front.
Liverpool's Milan Baros does play, however, as a lone striker ahead of a five-man Reds midfield. Is Rafa Benitez planning to stifle Chelsea in this away leg?
Chelsea: Cech, Johnson, Terry, Carvalho, Gallas, Tiago, Makelele, Lampard, Cole, Gudjohnsen, Drogba. Subs: Cudicini,
Smertin, Kezman, Geremi, Robben, Forssell, Huth.
Liverpool: Dudek, Finnan, Carragher, Hyypia, Traore, Garcia, Biscan, Gerrard, Alonso, Riise, Baros. Subs: Carson,
Kewell, Cisse, Smicer, Le Tallec, Nunez, Warnock.
Referee: A Sars (France)