Freiburg director Jochen Saier has said the club will turn down Borussia Dortmund's "final bid" for Matthias Ginter.
Bundesliga champions Bayern Munich will launch the defence of their title against Wolfsburg in the 2014/15 season.
Didier Ya Konan has been warned time is running out for him to sign a new contract with Bundesliga club Hannover.
Bundesliga club Hannover 96 have completed the signing of Miiko Albornoz from Swedish champions Malmo FF.
Stoke have completed the signings of Senegal striker Mame Biram Diouf and Slovakian Under-21 defender Dionatan Teixeira.
Hannover have signed Spanish forward Joselu from Bundesliga rivals Hoffenheim for an undisclosed fee.
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