Chelsea denied Liverpool the glory of another sensational European comeback to reach the semi-finals of the Champions League.

Liverpool, trailing 3-1 from the first leg at Anfield, stunned the Blues with two first-half goals from Fabio Aurelio and Xabi Alonso, who scored a penalty.

Chelsea’s defensive frailties, exposed so clinically by Bolton in the Barclays Premier League at the weekend, looked like costing them a place in the last four as Liverpool, without their talismanic midfielder Steven Gerrard, threatened to pull off another miracle.

But the Blues looked home and dry after producing a sensational comeback of their own - scoring three times in the second half to lead 6-3 on aggregate at one stage.

Yet this incredible contest took another twist when Liverpool scored twice in as many minutes through Lucas and Dirk Kuyt to leave them just one goal adrift of an incredible victory.

However, Lampard’s second of the night in the 89th minute secured a 4-4 draw on the night and a 7-5 Chelsea win on aggregate.

The home side had been outplayed in the opening 45 minutes and had barely threatened to get on the scoresheet despite coach Guus Hiddink’s pre-match assertion that Chelsea would go for more goals.

They had to wait until six minutes after the break for the goal which eased the growing pressure on their ambitions of reaching the final in Rome.

Didier Drogba’s effort was deflected into the back of the net by Liverpool goalkeeper Jose Reina, and a stunning 25-yard free-kick from Brazilian defender Alex then looked to have eased any remaining worries.

When Frank Lampard added a third in the 76th minute the tie seemed to be effectively all over, but Liverpool had other ideas.

Liverpool boss Rafael Benitez had always maintained that the first goal would be the most important but when Kuyt collected a pass from Yossi Benayoun and fired over in the 13th minute, he could have been forgiven for thinking that perhaps the task ahead was indeed far too great.