 In 2005, she joined VfL Wolfsburg, at a time when the club had just been relegated to the second division.With 36 goals, Müller was the second Bundesliga top-scorer the following season, helping Wolfsburg to achieve immediate promotion back to the German top flight.Müller remained with Wolfsburg in their 2012–13 breakout season, when they won a treble of Bundesliga, DFB-Pokal and UEFA Women's Champions League.