There were plenty of chances during the first-half between Manchester City and Chelsea, but it looked as though it was going to be goalless at the break.
That was until Gary Cahill turned a Jesus Navas cross into his own net to put the home side ahead in first-half stoppage time.
City were obviously delighted to take the lead at such an important stage of the match. They had numerous opportunities to score themselves but had to settle with Cahill giving them the lead.
There was every reason to be jubilant but Sergio Aguero’s reaction may have overstepped the mark. The Argentine, who had come close to scoring on a couple of occasions, appeared to mock Cahill for his error by thanking him.
Take a look at the moment below:
Aguero is one of the Premier League’s best strikers but mocking an opponent for an own-goal isn’t very sporting.
And, after the video emerged on Twitter, social media reaction to Aguero’s behaviour. Take a look:
While Aguero was celebrating in the first-half, he didn’t have any joy during the second-half. He missed numerous golden opportunities while City dominated proceedings.
However, moments after teammate Kevin de Bruyne missed an open goal from four minutes, Chelsea went and equalised against the run of play through Diego Costa.
Pep Guardiola's side continued to miss chance after chance - with Aguero being given a couple of those - and they paid the ultimate prize when Willian put Chelsea ahead from a counter-attack.
We would have loved to see if Cahill's celebrated in front of Aguero after his side took the lead.