they never did
The 5th fifa world cup was held in Switzerland in 1954.
Michael Lang played for Switzerland in the 2014 FIFA World Cup.
Stephan Lichtsteiner played for Switzerland in the 2014 FIFA World Cup.
Reto Ziegler played for Switzerland in the 2014 FIFA World Cup.
Philippe Senderos played for Switzerland in the 2014 FIFA World Cup.
Gökhan Inler played for Switzerland in the 2014 FIFA World Cup.
Haris Seferović played for Switzerland in the 2014 FIFA World Cup.
Granit Xhaka played for Switzerland in the 2014 FIFA World Cup.
Yann Sommer played for Switzerland in the 2014 FIFA World Cup.
Valentin Stocker played for Switzerland in the 2014 FIFA World Cup.
Blerim Džemaili played for Switzerland in the 2014 FIFA World Cup.