A glum Jose Mourinho admitted his side did not deserve to progress in the Champions League as the unconvincing Blues were dumped out of Europe by Paris Saint-Germain on Wednesday.
PSG seemed to suffer an early blow when star striker Zlatan Ibrahimovic was harshly sent off just 30 minutes into their last-16 second-leg at Stamford Bridge.
But the Premier League side twice allowed the ten-man French champions to come from behind to draw 2-2, with the plucky visitors winning the ill-tempered tie on away goals.
Both David Luiz and Thiago Silva’s headed goals were a result of Chelsea’s lacklustre marking from set-pieces, and Mourinho was scathing in his assessment of his side’s below-par performance.
"We didn't deserve to go through," the Blues boss said.
"When a team cannot defend two corners and concedes two goals, a team doesn't deserve to win.
"The individual performances were not good enough and when you concede two goals from two corners it's about lack of concentration, lack of responsibility to cope with the markers and the space you have to control.
"When a team cannot cope with the pressure of being one player more and playing at home... we couldn't cope with that pressure.
"We deserved to be punished with this draw, defeat."
Mourinho explained he will wait for the result to sink in before analysing the details with his squad, but insisted they must respond with a strong finish to their Premier League campaign as Chelsea continue their quest for a first top flight title in five years.
"I want to know," he added.
"I told the players after the game that it's not the moment to speak with them about it. [On Thursday] we will try to analyse that.
"For me it was a surprise. So I'm disappointed, but I try always to be pragmatic and when the opponent was better than us the first feeling is we deserved to lose. Analyse the situation is the next step.
"We need to react. We have the Premier League to win. We lost a competition where even if we had won today you have other important steps in front of you and other big teams to beat.
"We have the Premier League to win and we are in a good situation. There's no time to cry.
"If we win the Premier League and Capital One Cup, this season is still a fantastic season for us."
The Blues are five points clear of second-placed Manchester City with a game in hand, and face Southampton at Stamford Bridge in their next league outing.