Answer
The answer is São Paulo. Müller, the former Brazilian football player and current manager, was born in Campo Grande, Mato Grosso do Sul, a city located in the western part of Brazil, not in São Paulo. Müller began his professional career with Comercial Futebol Clube in Campo Grande before moving to Europe to play for several clubs, including Torino in Italy and Kashiwa Reysol in Japan.