Cesar Azpilicueta apologised to Chelsea fans after their 6-0 thumping by Manchester City and brutally declared: “It’s one of the worst nights in my career”.
Maurizio Sarri’s men were destroyed by the rampant Premier League champions at the Etihad.
City soared into a four goal lead inside 25 minutes, with the Blues all over the place defensively.
Sergio Aguero scored a hat-trick, Raheem Sterling nabbed two and Ilkay Gundogan also found the net.
The loss was Chelsea’s heaviest since 1991, when they fell 7-0 to Brian Clough’s Nottingham Forest.
“It’s one of the worst nights in my career,” said the Spaniard.
“It’s difficult to explain what happened. “The first five or six minutes went well but that is not enough. It is very frustrating and disappointing. We’re conceding a lot of goals and we cannot accept that.
“When you lose 6-0 we have to accept we didn’t play well and made errors. We knew it would be tough.
“When we won at Stamford Bridge it was because we played well and were together. Today was not the case.
“All I can do is apologise to the fans because it’s not acceptable.”
Chelsea’s loss leaves them sixth in the Premier League and having conceded 10 goals in their last two away matches.
Pressure continues to rise on Italian coach Sarri, who, when asked if he felt at risk post-game, responded: “I don’t know. You’ll have to ask the club.
“I’m worried about my team, worried about the performance, but my job is always at risk, so I’m not too worried about that.”