Diego Costa's nickname back when he was growing up in Brazil was 'Burrega' — it means a stubborn son of a goat who loves a fight.
Some of his closest relatives still call him it now when they message him on WhatsApp.
Love him or loathe him, this is Diego Costa. It is what makes him such a formidable striker, and his new manager is beginning to understand this.
Antonio Conte issued a plea for the player to focus his passion in the right way ahead of their Premier League visit to Swansea City.