The French winger has not played for three months after suffering knee ligament damage.

After his recovery, he was forced to have his big toenails removed due to an inflammation.

Ribery will miss the Bundesliga start next week when Bayern face Hoffenheim.

"I’m disappointed because he has not gone through a very good training camp," Van Gaal said on Bild.

"We did not have the opportunity to integrate him. That was one of our goals."