Costa filmed mocking Conte in a live video.
Diego Costa is already an outcast in the Chelsea squad after he claimed in a public interview that manager Antonio Conte text him to inform him that he is no longer in Chelsea plan for next season.
He is not with Chelsea for their pre-season preparation after granted to be left out to complete a transfer to his preferred destination, Atletico Madrid.
In the live video, he was filmed wearing the Atletico shirt and a surprise guest commented on the video.
The guest was none other than his Chelsea teammate, Cesc Fabregas.
Upon seeing his teammate comment, Costa wrote a text reply to Fabregas which says “Give Conte a hug”.
The striker is rumored to be very close to a return to Madrid but could be loan out till January due to a ban from FIFA which will ban Atletico from fielding any new player till year 2018.
There is no superior progress so far about the transfer yet but the chances are quite high unless Chelsea make unnecessary demands.