Borussia Dortmund chief Michael Zorc has hinted they could sell skipper Mats Hummels this summer. The Germany defender is a top target for Louis van Gaal's Manchester United.

Zorc admits if BVB miss out on European qualification, they will have to trim their squad - which could include selling Hummels.

He told BILD: "If we do not qualify for Europe, the squad is certainly a little too big.

"There is constant speculation about new players, but it is impossible in this case unless we increase the budget."