Mauro Zarate grabbed an 86th-minute winner as Argentina came from behind to beat the Czech Republic 2-1 in the Fifa Under-20 World Cup Final in Toronto.
Zarate beat Czech keeper Radek Petr with a fierce shot from the edge of the area
The Czechs took the lead on the hour through Martin Fenin's brilliant shot but Argentina levelled two minutes later through striker Sergio Aguero.
The game looked to be heading for extra-time until Zarate cut in from the left and beat Czech keeper Radek Petr.
It was Argentina's sixth title, and they have won five of the last seven.