Christoph Metzelder is a major doubt for Germany's final Group A game against Ecuador on Tuesday after limping out of training on Saturday.

The central defender twisted his right knee and immediately headed back to the team's headquarters for treatment.

Should Metzelder be ruled out it would come as major blow to coach Jurgen Klinsmann, as he had hoped to name the same starting line-up that performed so well in the 1-0 win against Poland.

Robert Huth and Jens Nowotny are the candidates to deputise for Metzelder in a game Germany must win in order to secure top spot in the group.