Switzerland's preparations for the 2010 FIFA World Cup South Africa™ took a knock as they suffered a shock defeat to Costa Rica in Sion.

Winston Parks, who plays his club football in Romania with FC Timisoara, scored the only goal of the game in the 57th minute. The result will have the Swiss contemplating their hopes in South Africa, as the Costa Ricans failed to qualify for the event, losing out to Uruguay in their inter-continental play-off.

Ottmar Hitzfeld's Switzerland are in Group H for the tournament in South Africa alongside European champions Spain, Chile and Honduras.