The Blues boss marched onto the Stamford Bridge turf seconds after referee Anthony Taylor blew the final whistle on the thrilling 4-4 draw with Manchester City at Stamford Bridge.
He angrily gestured and shouted at referee Anthony Taylor as he felt the final whistle was blown prematurely, even though ten additional minutes were played, two minutes more than the allotted eight at the end of the game.
The Argentine was restrained by two of his assistants, while a Stamford Bridge steward was stood nearby.
Pochettino lifted the lid on why he was frustrated with Taylor but was guilty of dropping an F-bomb in an interview post-match.
"I was seeing the possibility that Raheem [Sterling was going forward to maybe score the winning goal and when he [Taylor] stopped the game I lose a little in my head and I turned and said to the fourth official, 'what the f***?'"
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Ex-Tottenham boss Pochettino profusely apologised for his colourful language, and even said the words 'beep, beep' as he immediately acknowledged his fault.
"I said, 'what is going on?' Sorry," he added.
"I deserved the yellow card and I want to apologise to the referee and apologise for my word now."
The encounter ebbed and flowed in was arguably the Premier League's best match of the season, which provided a late twist in Cole Palmer's stoppage-time penalty denying his former club the win.
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Pep Guardiola's side broke the deadlock with a penalty of their own, scored by Erling Haaland.
Chelsea responded impeccably as they equalised through Thiago Silva's header before the game was turned on its head when Raheem Sterling scored against his former club following an error by Josko Gvardiol.
Manuel Akanji pegged Chelsea back just before the break before Haaland put City in front again in the early minutes of the second half.
Nicolas Jackson made it 3-3 midway through the second half, however, City took the lead for a third time when Rodri's long-range effort took a huge deflection off Silva and beat Chelsea goalkeeper Robert Sanchez.
It appeared City were on their way to going three points clear at the top of the Premier League until Palmer struck beyond former teammate Ederson after Armando Broja was brought down in the box by Ruben Dias.