Career
He played as a goalkeeper. In 1942 Müller moved from his home club Football Club Birsfelden to Football Club. His transfer sum (CHF 250000) was enormous for its time.
Müller spent the next fourteen years between the posts for RotBlau as their first choice goalkeeper, playing in 291 matches. His biggest success was the championship title in "s 1952-1953 season.
In addition to this title, Müller also reached the Swiss Cup final twice, one victory and one defeat.
At the end of the 1943-1944 cup season, on 10 April 1944 in the Wankdorf Stadium in Bern, were defeated in the final by Lausanne Sport through three goals scored in the last five minutes. In the Stadion Neufeld on 7 April 1947 Paul Stöcklin scored two goals and René Bader the other. Müller never made it to an appearance in the Swiss national football team, however, he was in the squad for more than five years as their substitute goalie.