Tottenham fullback Benoit Assou-Ekotto went into meltdown during Cameroon's thrashing by World Cup opponents Croatia.
Assou-Ekotto let his frustrations boil over as he headbutted his Cameroon team-mate Benjamin Moukandjo in the closing stages of their 4-0 defeat by Croatia.
Cameroon were trailing 4-0 in injury time when the Tottenham left back, on loan at QPR last season, lashed out at his team-mate.
Assou-Ekotto's anger continued after the final whistle in Manaus as Chelsea striker Samuel Eto'o was forced to restrain him in the tunnel.
