Former Germany international Dennis Aogo has joined Stuttgart from Schalke on a two-year deal.
Bayern Munich CEO Karl-Heinz Rummenigge says they are not prepared to pay astronomical transfer fees and wants a salary cap introduced.
Eintracht Frankfurt have confirmed Mexico international Marco Fabian is set for a two-month spell on the sidelines because of lower back problems.
Borussia Dortmund are willing to enter negotiations with Barcelona over a transfer of winger Ousmane Dembele, according to multiple reports in Germany
Borussia Dortmund midfielder Sebastian Rode could be set for a 10-day spell on the sidelines with a thigh injury.
Badstuber, 28, was at Stuttgart from 2000 until 2002 before joining Bayern Munich and making his senior debut in 2009.