Borussia Dortmund chief Michael Zorc insists they're not losing any sleep as the winter market winds down.
BVB skipper Mats Hummels has been linked with Manchester United, while midfielder Marco Reus is on the radars of Real Madrid and Manchester City.
"We're used to this happening in every transfer period," said Zorc. "There's always a great club with a big suitcase full of money visiting the Westfalendamm.
"What I mean to say that we live with all these rumors - and have done so for a long time. But we can live with it.
"It doesn't force us to lose sleep."
