Guardiola faces crisis at Bayern as doctor walks out after 40 YEARS.

Bayern Munich doctor Hans-Wilhelm Muller-Wohlfahrt, who has served the club for almost 40 years, has quit the Bundesliga club in the fall-out of their shock Champions League defeat by Porto.

Muller-Wohlfahrt claims the German champions' medical department has been blamed for Wednesday night's 3-1 first-leg defeat in Portugal which left their Champions League hopes hanging by a thread.

The 72-year-old medical professional, renowned as a world leader in his field, said 'the bond of trust is damaged' and called the blame centred at his department 'inexplicable'. His son Kilian, Peter Ueblacker and Lutz Hansel, who are all part of the team at Bayern, have also resigned.

A statement from Muller-Wohlfahrt read: 'After the Champions League match of Bayern Munich against Porto the medical department was for some inexplicable reason made primarily responsible. The bond of trust is damaged.' 

Pep Guardiola had just 14 fit players to choose from at the Estadio do Dragao and the Bayern manager implied in his post-match comments that the defeat was down to the lack of available players.

'We have players who were out a long time with injuries,' he said. 'Their legs don't last very long. It's a tough result to take into the second leg, but we'll give it a go.'

Guardiola and Muller-Wohlfahrt have reportedly had differences of opinion on several previous occasions including over the fitness of midfielder Thiago Alcantara ahead of last summer's World Cup.