Kammala jumla mai zuwa: A shekara ta 2006, an riga an zaɓe ta a cikin manyan 'yan wasa 24 don gasar zakarun Turai ta babban kocin Armin Emrich, amma daga ƙarshe an bar ta daga ƙungiyar masu tafiya. A ƙarshe Müller ta fara buga wasan farko a ranar 18 ga Oktoba 2007 a kan Japan. Ta shiga tawagar Jamus a gasar
Gasar cin Kofin Duniya ta 2007; ta buga wasanni shida a gasar, inda ta zira kwallaye biyu kuma ta lashe lambar tagulla. Bayan shekara guda, Müller ta yanke shawarar ba za ta shiga gasar zakarun Turai ta 2008 ba, tana mai cewa tana bukatar hutu bayan tsawon shekaru uku da suka gabata.