Career
Müller began his career at Football Club Meyrin before moving on to Servette. He also played in Switzerland for Grasshoppers in Zürich. His talent was noted by the French club Olympique nais, who signed him.
He has also played for Real Mallorca and Football Club Basel.
On 31 August 2008 he signed a contract for two years with AS Monaco. Müller plays for the Swiss national football team on a regular basis and was called into the squad for the 2006 World Cup.
He is infamous for several incidents where he blocked balls with his hands during the 2006 World Cup.