But they have been told to pay an “insane price” if they want to take him to Old Trafford in this transfer window.
However, the Belgian outfit’s general manager, Herman Van Holsbeeck, then revealed that it would cost around £27million to prize him away.
Jose Mourinho wanted to sign the 22-year-old in the summer but instead focussed his attentions on bringing in Nemanja Matic from Chelsea.
The Man Utd midfield has lacked bite at times this season and the Portuguese boss is ready to re-enter the race for Dendoncker.
According to the MEN, Mourinho had cooled his interest but the latest comments from Van Holsbeeck might reopen negotiations.
“Dendoncker was already busy in the previous transfer period,” he said.
“But now that Kara is injured, Leander is doing a great job as a central defender and we’re not going to let our star go.
“Unless there is an insane bid perhaps.
“These are matters that are discussed.
“A transfer for €25-€30m is possible, but then we also need a replacement right away.”
West Ham are also heavily linked with the versatile midfielder.