Football’s new bad boy shows his nasty side!
Diego Costa, Atletico Madrid’s Brazilian striker, has been filmed tripping up a child in a training session!
The kid then swears at the former Liverpool target, before he gets up and skulks off!
Brendan Rodgers wanted the forward in the summer, but the 24-year-old eventually signed a new contract with the Spanish league leaders.
Atletico have won eight of their eight games in La Liga so far this term, and sit joint top of the table.