Hans-Wilhelm Müller-Wohlfahrt, German physician and author

Hans-Wilhelm Müller-Wohlfahrt (German pronunciation: [ˌhansˈvɪlhɛlm ˌmʏlɐˈvoːlfaːɐ̯t]; born 12 August 1942 in Leerhafe, today part of Wittmund, East Frisia) is a German orthopedist. He gained recognition for his roles as Germany national football team doctor (1995–2018) and club doctor of Bayern Munich (1977–2015, 2017–2020). He initially resigned after him and his medical staff were blamed for a 3–1 loss to Porto in a UEFA Champions League match during the tenure of coach Pep Guardiola, but he rejoined after the reappointment of Jupp Heynckes as head coach. Having already resigned from his position at the German national football team in 2018, his second and final resignation at Bayern Munich also came into effect on the 30th of June 2020.Many of the German doctor's treatments are seen as controversial, including using injections of a substance called Hyalart, extracted from the crest of cockerels, which is claimed to help lubricate knee injuries and take away the pain. He has also injected Myo-Melcain, which is the painkiller Procaine in a honey solution, or Actovegin into patients' muscles.Müller-Wohlfahrt's use of homeopathic medicine to treat players is also controversial.