Hannover boss Mirko Slomka has revealed that defender Felipe is to undergo hip surgery and will be out until Christmas.
Felipe has only made three appearances for the club since his summer arrival from Standard Liege and now faces a long wait to play his next game.
Slomka says the Brazilian has been struggling for some time and he hopes having surgery now will allow him to come back stronger in the second half of the season.
"Felipe is to undergo a surgery on his hip. He was having problems, which were ongoing," Slomka told Bild.
"He will definitely not play again until the end of the Christmas period."