The Hague - Argentina's men thrashed South Africa 5-1 at the hockey World Cup in The Hague on Tuesday to guarantee a place in the semi-finals of the competition.
The convincing victory put Argentina top of group B though they could yet slip down to second place should the Netherlands avoid defeat against New Zealand later.
Australia and England have already reached the semi-finals having finished first and second in group A.
Argentina were dominant throughout the contest and established a half time lead with goals from Joaquin Menini and Gonzalo Peillat.
A superb backhand goal from Lucas Vila made it 3-0 and though Clinton Panther reduced the deficit, Peillat and Vila each completed their doubles to ensure a comfortable win.
Germany play South Korea in the men's competition later on Tuesday while in the women's tournament there is the United States v South Africa, Germany v England and Argentina v China.