Rubuta ci gaba don wannan sakin layi - A ranar 18 ga Satumba 2020, Müller ya zira kwallaye na farko a kakar wasa ta bana, kuma ya ba da taimako guda ɗaya, a cikin nasarar 8<unk>0 a kan Schalke 04. Daga baya ya sami nasarar lashe gasar cin kofin UEFA
da DFL-Supercup don zama kofinsa na 27 na aikin kulob dinsa; saboda haka, ya zama dan wasan da aka fi ado a tarihin Jamus, ya karya rikodin da ya gabata na kofuna 26 da tsohon abokin wasansa na Bayern Bastian Schweinsteiger ya lashe. A ranar 11 ga Fabrairun 2021, ya gwada tabbatacce ga COVID-19 kuma ya shiga keɓewa; saboda haka, ba zai iya buga wasan karshe na gasar cin kofin duniya ta FIFA ta 2020 ba.