Bayern Munich executive Max Eberl might already have lost one of his primary transfer targets for the summer transfer window.
Borussia Dortmund appointed Croatian Niko Kovac as manager on Thursday after the Bundesliga club sacked Nuri Sahin last week.
Ricken said: "We've held intensive talks with Niko Kovač over the past few days and have consciously taken the time to get to know each other and our expectations better. Niko's ...