The 28-year-old has been accused by the pundits of diving on many occasions, the referees tend to reach for the whistle every time he hits the deck; it has led to a sorry end for the former Brazilian global.
Costa is seen dancing while wearing the red and white Altetico Madrid jersey.
He appears to chant “Aupa Atleti” in the clip – in support of his former club.
Antonio Conte’s brutal text message to Costa earlier this summer – telling the striker he had no plans for him at Stamford Bridge – was damaging, to say the least, but the Spaniard has now undoubtedly severed all ties.
Furious Chelsea fans commented in their hundreds at the footage, with many seeing it as the last straw for the controversial striker.
Do you think Chelsea should let Costa and Matic leave?
Players often swap shirts at the end of historic football matches, but Diego Costa has taken the custom to new heights.
And a third commented: “Good riddance… No U-turn, thanks for coming, bye”.
But while a move to China no longer appears a viable option, the player does hope to return to former club Atletico Madrid, who despite now being under a transfer ban, are trying to arrange his signing in January, but in the meantime loan him out to another club.