Manchester United target Owen Hargreaves has suffered a setback in his recovery from a broken leg.
Hargreaves, who broke his leg four months ago, has been told that he cannot yet resume full training with his team-mates in their training camp in Dubai.
The England star will instead take part in light training which will delay any comeback plans the player had.
Hargreaves is now unlikely to be fit for Bayern's first competitive match of 2007 against Borussia Dortmund on January 26.