Chelsea manager Mauricio Pochettino has reacted after his side's entertaining 4-4 Premier League draw with Manchester City on Sunday.
The Blues fell behind three times during the frantic match in west London.
But while City scored through Erling Haaland, who netted twice, Manuel Akanji and Rodri they were unable to come out on top.
Cole Palmer netted a late penalty against his old side, converting from 12 yards after previous goals from Thiago Silva, Raheem Sterling and Nicholas Jackson.
Chelsea star Cole Palmer kept his cool to score from 12 yards in Man City Premier League draw
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After the game, Pochettino was livid.
The Argentine stormed onto the field shouting at Anthony Taylor for blowing his whistle at full time.
And now, speaking at his post-match press conference, Pochettino has promised to apologise for his reaction.
"I need to apologise to Anthony and the officials because in this moment I feel Raheem can go through and in this moment I say ' What the...?" he said.
"I deserve to be booked, I apologise but this type of behaviour is no good.
"I want to apologise to him also [Pep], I was focused on the action."
Pochettino was, however, proud of the way Chelsea performed as they earned a draw and prevented another top side from winning.
"Very proud, so happy. I think the players deserve full credit," he stated.
"We face the team that for me is the best team in the world. Too many circumstances that happen to make me proud.
"We still need to improve, it's the process when you want to build a project, build a journey.
"This type of experience will improve our team and now we need to use and translate to the future."
Palmer also spoke out after his heroics.
And the 21-year-old admitted he found it odd playing against his boyhood club for the first time since his departure.
"Very strange the first time I have played against City," he stated.
"I have the upmost respect for the club I spent 15 years at and it is nice to see some friends.
"[We were] unlucky to not get the win. I have many City fans I know but it is the game."
On his penalty, he added: "[I was a ] long time waiting but I felt confident and I have had a few now. Kept calm and focused.
"I'm not going to say I work on them because I don't, I trust on my natural ability.
"It was amazing I was excited before the game to show what I can do and we went behind a few times and bounced back."
Sterling, who also found the net against his former employers, added: "It was a good game, we wanted to win the game.
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Chelsea players celebrate Cole Palmer's penalty in chaotic Man City draw
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"The win we got at Tottenham, that's the mentality we had."
"We've been trying to build slowly but surely. There have been some setbacks.
"We're making those steps. I had a great time at City. People know what I can do. It's good to be part of it here."
