Sky Sports understands Derby County are poised to sign German youngster Tom Koblenz from Hoffenheim.
Bayern Munich bounced back from their German Supercup disappointment by beating Preussen Munster 4-1 in the German Cup.
Hoffenheim have bolstered their attacking options by signing winger Steven Zuber from CSKA Moscow.
Hamburg have appointed Bernhard Peters as their new sporting director a day after parting company with Oliver Kreuzer.
Hoffenheim have signed forward Adam Szalai from Bundesliga rivals Schalke for an undisclosed fee.
Bundesliga champions Bayern Munich will launch the defence of their title against Wolfsburg in the 2014/15 season.
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