Bayern Munich expect to have director of sport Matthias Sammer back on their bench within the next fortnight as the former Germany international recovers from a mild brain disorder.

The 48-year-old former Germany sweeper and 1996 Ballon d'or winner has been absent from the bench the last two games and will miss Wednesday's Champions League game at Atletico Madrid as he continues to recover.

Sammer is convalescing at home after suffering from what club doctor Roland Schmidt has described as "a miniscule circulatory disorder of the brain that will heal completely and without consequences".

"He's doing very well, he's working out. He doesn't need to worry about things. It's a matter of weeks, not months," said Bayern chairman Karl-Heinz Rummenigge on Tuesday before Bayern flew to Madrid.

Rummenigge says he expects Sammer will return to his Bayern duties on May 14, the final day of the Bundesliga season, "once we get the (German league) trophy" with Bayern set to have a fourth consecutive league title confirmed this Saturday.

When the club put out a statement last Sunday, Sammer said "there is nothing" he is not allowed to do, but that he'd give himself the necessary time to recover.

He joined Bayern in his current role in July 2012, having previously been technical director of the German Football Association (DFB) from 2006.