Former Atletico Madrid striker Florent Sinama Pongolle has described Chelsea striker Diego Costa as a madman.
The Spain international has a reputation in the EPL for an erratic temper since joining Chelsea in 2014.
And Pongolle who used to train with him back in 2010 has stated Costa is only at his best when he is riled up.
He told Le 10 Sport : “When I went to Sporting the club had no money and so brought back Diego Costa, who was on loan.
“I trained with him and he’s a madman, like what you see on TV. It’s hilarious.
“Otherwise [away from football], he’s a funny guy but on the field he needs to be angry to be good.”