Diego Costa was very lucky on Saturday 19th September, 2015 not to have been red-carded in the match between Chelsea and Arsenal at Stamford Bridge.He used his hands to cover Laurent Koscielny face and quickly turned and hit him in his face in quick succession while anticipating a pass to him in order to pave way for goal scoring ambitions. Gabriel Paulista came to seperate the two Diego Costa rushed and chested him down. What baffled me was where was the referee and other match officials when he was doing all those fouls but punished Gabriel on and not Costa. The referee could have been just enough to punish both players equally. The English FA should not sweep this rascality under the carpet as Costa is in this habit always.