Genk sports director Dimitri Conde says Nigeria forward Paul Onuachu will only leave the club for the right price.
Onuachu has been linked with a number of clubs in England notably Arsenal, West Ham United and Brighton & Hove Albion.
The 27-year-old scored 35 times in 41 appearances across all competitions for the Smurfs last season.
“The market is a bit strange. It is a bit quieter than usual, but I don’t mind. We want to keep our team together,” he said.
“It is of course a market with supply and demand, but for now it is quiet around them.
“Let them go for a price that we can agree with.”