Raul Jimenez has acknowledged that he has no release clause in his Wolverhampton Wanderers contract.
Having scored 39 goals in all competitions since moving to Molineux in the summer of 2018, Jimenez is being strongly linked with a move to a bigger club.
However, as Manchester United and Real Madrid consider a bid during the next transfer window, the Mexico international has suggested that it will take a lucrative offer to tempt Wolves into a sale.
The 28-year-old told Marca: "They bought me for €40m (£34.5m), they won't sell me for less. There is no release clause, but the clubs in England, it is different how they are managed."
Jimenez currently has just over three years remaining on his contract at Wolves, who would likely demand well in excess of £60m should they receive any interest in one of their key men.