Switzerland striker Johan Vonlanthen has been ruled out of the World Cup.
Vonlanthen, 20, left the squad's training camp on Friday after doctors revealed that his hamstring injury would keep him out of the three group matches in Germany.
Hakan Yakin, the Young Boys Berne playmaker, has been added to the squad although his name will not be submitted to FIFA until June 12, the day before Switzerland open their campaign against France in Stuttgart.
Although there is no reason given for that wait it could be because Switzerland coach Kobi Kuhn omitted the 29-year-old Yakin from his original 23-man list due to fitness worries.
A statement posted on the Swiss Football Federation website www.football.ch read: 'Johan Vonlanthen left the national team's preparation camp on Friday evening.’
'The three team doctors - Cuno Wetzel, Ruedi Roder and Roland Grossen - had previously told him that a place in the FIFA 2006 World Cup was medically impossible.
'The 20-year-old forward of Dutch club NAC Breda (Vonlanthen) last Monday tore a muscle in his left hamstring.
'This injury will keep him out for four weeks and that means Vonlanthen would miss the whole preparation and the three group matches with France, Togo and South Korea.'
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