Former Germany goalkeeper Jens Lehmann believes Manuel Neuer still needs to work on certain areas of his game.
Poland stunned world champions Germany in a Euro 2016 qualifier to claim an historic first victory over their neighbours.
Oliver Bierhoff concedes there is still "no exact prognosis" on when Bastian Schweinsteiger will return from injury.
Germany midfielder Mesut Ozil is to undergo an MRI scan on his left knee and is doubtful for the Euro 2016 qualifiers.
Germany forward Thomas Muller hopes to beat the World Cup goal-scoring record set by Miroslav Klose.
Bayern Munich's defender Holger Badstuber faces another lengthy period on the sidelines because he needs an operation.
Marco Reus has been ruled out for at least four weeks after he picked up an ankle injury in Germany's win over Scotland.
Ex-Bayern Munich midfield star and World Cup winner Toni Kroos is not looking back after his summer switch to Real Madrid.
Germany midfielder Marco Reus turned his ankle in the Euro 2016 qualifying game against Scotland on Sunday.
Germany began its 2016 European Championship campaign with victory, while Portugal and Greece both slumped to defeat.
South Korea have appointed former Germany international and managerial journeyman Uli Stielike as the national team's new coach.
Germany have called up forward Sidney Sam to add more punch to their attack when they take on Scotland on Sunday
A brilliant performance from Angel di Maria spurred Argentina to a crushing win over world champions Germany.
Argentina will have the chance to exact revenge of sorts when they travel to Dusseldorf for a friendly international with Germany.
Germany defenders Jerome Boateng and Mats Hummels are both out of Argentina friendly, while midfielder Sami Khedira is doubtful.