Check this out, this is what Costa said to the referee
Atletico v Barcelona: Check out what Diego Costa said to the referee that got him sent off (Video)
dailyadvent.comApr 6, 2019 8:56 PM
Atletico Madrid were reduced to 10 men, 28 minutes into Saturday’s La Liga fixture, involving the capital club and the team from Catalunya Barcelona.
The Atletico forward was given his marching orders by the referee. He was not happy with a decision by the referee and went straight up the official. He let his feelings known and seemingly overstepped the mark by abusing the referee’s mother. Diego Costa to the referee “Me cago en tu puta madre (I shit on your fucking mother)”
Referee Jesus Gil Manzano brandished the red card, prompting a furious reaction from the Atletico players. Costa has to be escorted from the field by Pique of all people. The match is on with the scores still stands at 0-0.
Diego Costa to the referee "Me cago en tu puta madre (I shit on your fucking mother)"#BarçaAtleti