Switzerland forward Mario Gavranovic has been ruled out of the remainder of their World Cup campaign after suffering a serious knee injury in training.
The FC Zurich player, who had not featured for Ottmar Hitzfeld’s side during the tournament in Brazil, tore his cruciate knee ligament on Saturday.
Hitzfeld’s men qualified for the round of 16 after finishing second in Group E behind France and face a testing clash against Argentina on Tuesday evening.
A statement from the Swiss Football Association (ASF) read: “Mario Gavranovic badly injured his knee in Switzerland's training in Porto Seguro on Saturday.”
The 24-year-old sustained the injury in a fall when his foot became stuck in the turf and could now be out for the remainder of 2014.
Gavranovic, who has won 11 caps for his country, had his worst fears confirmed by a scan and is now flying back to Switzerland to undergo surgery.