Gabriel Paulista has been sent-off towards the end of the first half after being involved in an off the ball tussle with Diego Costa.
Gabriel was sent off for kicking out at the Spaniard but the decision has not gone down well considering Costa could well have been sent off moments earlier.
Costa was initially involved in a scuffle with Laurent Koscienly which saw the Chelsea striker grab and then slap the defenders face.
Both players went face to face with one another before Gabriel got involved, with he and Costa both shown yellow. Moments later as play is about to resume, Costa signals towards Mike Dean that he was kicked by the Brazilian defender. After a quick discussion with his linesman, Dean showed Gabriel the line.
Costa did not cover himself in glory after viewing the replays and is a very, very lucky boy to still be on the pitch. Arsenal currently trail 1-0 after a Kurt Zouma goal early in the second half.
Here's what they're saying on social media about the incident;
Costa is everything wrong with football and society rolled into one man-shaped package #CHEvARS
— MANUTD (@allofmufc) September 19, 2015
Diego Costa is lucky he's such a terrific villain, because he's a fairly limited centre-forward.
— Paul Ring (@Paul__Ring) September 19, 2015
Some facts about Diego Costa: pic.twitter.com/h84tDWwp6p
— Paddy Power (@paddypower) September 19, 2015
I dare Costa to play this provocations game with Roy Keane. He'll be torn into two pieces with one being thrown in Brazil, other in Spain.
— Tushar Kamath (@GlorifiedUnited) September 19, 2015
Going to church now for my cousin's wedding. Will pray for Diego Costa's sins, the filthy cheat.
— Piers Morgan (@piersmorgan) September 19, 2015
