Bayer Leverkusen are prepared to do business with Manchester United in January for Hakan Calhanoglu.

The midfield schemer is being linked with a New Year move to Old Trafford.

Bayer chief Rudi Voller is willing to listen to offers for Calhanoglu, with a deal for Stuttgart playmaker Daniel Didavi in place.

Agent Bektas Demirtas insists Calhanoglu has not been touting himself around Europe and that any move away will stem from Bayer's side.

"Bayer is for him the best club. That is why he told us not to communicate with other clubs," said Demirtas.

United and Bayer have been strengthening ties after the sale of Javier Hernandez to the Germans.