Chelsea's Demba Ba scores the first goal for the team during their Champions League quarter-final second leg soccer match against Paris St Germain at Stamford Bridge in London, April 8, 2014. [Photo/Agencies]

LONDON - Chelsea snatched a dramatic late goal through Demba Ba to beat Paris St Germain 2-0 and reach the Champions League semi-finals on the away goals rule on another memorable European night at Stamford Bridge on Tuesday.

Substitute striker Ba, who replaced Frank Lampard midway through the second half, struck with time running out for the 2012 European champions, who looked to be going out of the competition after losing the first leg 3-1 last week.

But Ba's goal in the 87th minute levelled the tie at 3-3 and Chelsea, evoking memories of their battling and ultimately successful campaign two seasons ago, went through on away goals thanks to Eden Hazard's penalty in Paris last week.

Andre Schuerrle, who replaced the injured Hazard after only 17 minutes on Tuesday, had given Chelsea hope with a superbly taken goal after 32 minutes but Jose Mourinho's perfect record of winning all eight European quarter-finals he had been involved in, seemed about to end with time running out.

Ba sealed victory, though, when a Cesar Azpilicueta shot was deflected to him in the area and he scooped the ball past keeper Salvatore Sirigu to send the home fans into raptures as Mourinho sprinted down the touchline to join his celebrating players.

"It all happened so quick," said Ba. "I saw the ball and it was in the goal. I just do what I have to do when I get chances. I didn't have chances this season but tonight I took it."

Chelsea manager Jose Mourinho added on ITV: "Demba made a crucial finish for us and I think very much deserved. The team that decided to defend was punished and the team that played with their heart deserved to go to the semis."

The Portuguese coach's dash along the touchline evoked memories of his famous Old Trafford celebration when his Porto side beat Manchester United in 2004 although this time he was also keen to tell his players not to take any risks.

It is the seventh time in 11 Champions League campaigns that Chelsea have reached the last four and Mourinho is on course to become the first manager to win the European Cup with three clubs after triumphs with Porto in 2004 and Inter Milan in 2010.

Mourinho had told his players to "go out and play with a smiles on their faces" as they had nothing to lose after last week's defeat, but they failed to make an early impression as PSG dominated the midfield and pegged Chelsea back.

Thiago Motta, Blaise Matuidi and Marco Verratti took a stranglehold in the middle of the park for the visitors, who were playing with the kind of confidence that comes from a team who have won their last 11 matches.

But PSG coach Laurent Blanc, who said his best form of defending their first leg lead was to attack, appeared to have different tactics in reality and his side failed to seriously test Chelsea when they held the upper hand.

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