Ooo he's a cheeky one isn't he! Love or hate him, though, you can't excuse this!
If there is one man that the whole football world has now turned on and really, really hate, it's Diego Costa and we reckon we've found even more reason for folk to dislike him.
Now, we'll admit it, we actually really like Costa - he's like a proper pantomime villain and you just can't help but love a bad boy, right?!
He did it all, from hitting Laurent Koscielny in the face... twice, to having a right spat with Gunners defender Gabriel - which resulted in the Brazilian getting sent off.
With all the craziness, we reckon you might have missed this brilliant dive and even better reaction from Costa right at the start of the game.
Top Corner (@HITCtopcorner) September 20, 2015
Oh dear! Falling over absolutely nothing is one thing - but trying to get the pitch booked is just madness! We're not sure if Costa will get retrospectively banned, check his boots or ask for more camera angles to see if he was actually clipped.