Bayern Munich may have to field their third choice goalkeeper in their Bundesliga opener against Borussia Monchengladbach as Manuel Neuer has been hit by illness, according to a report in Bild.
Summer signing Neuer is believed to be suffering from gastrointestinal problems, and though he reported for duty on Friday, he left the training session just minutes after it had started.
Hans-Jorg Butt, the club's second string shot-stopper, has not yet recovered from flu and will not take part in Sunday's match.
Neuer has not yet been ruled out of the encounter, but it is believed that coach Jupp Heynckes will make a decision on who will defend the team's goal just minutes before the match.
If the former Schalke man is deemed unfit for the encounter, Maximilian Riedmuller and Rouven Sattelmaier are the next keepers in line.