Borussia Dortmund chief Michael Zorc has fired a warning at the agent of Erling Haaland.

Before their Champions League defeat to Manchester City, Zorc insisted they were in control of Haaland's contract and not agent Mino Raiola.

He told Sky Deutschland: "The fact is: nothing works without our signature. We plan with him, regardless of whether we qualify for the Champions League or not.

"We have given a clear message that we will continue to plan with him.

"It may be that Mino sees it differently."