Müller started his footballing career with Los Toritos, prior to joining Banfield's system in 2008.[3] Years later, Huracán signed Müller following a successful trial.[2][4] He was promoted into the first-team of Huracán during the 2016 Argentine Primera División season, subsequently making his professional debut against Unión Santa Fe on 13 May.[2] In 2018, having only appeared once more since his club bow, Müller was loaned out to Primera B Metropolitana's Sacachispas on 9 January.[2][5] He was selected seventeen times during 2017–18.[2] In total, Müller played fifty-two times whilst also netting his first senior goal - against Comunicaciones.[2]