David de Gea's agent has fuelled speculation that the Spanish goalkeeper may leave Manchester United after admitting that "things change every five minutes".
The 24-year-old has been in inspired form for the Red Devils this campaign, leading to speculation that the current European champions could be tempted into breaking the bank to land his signature.
Jorge Mendes refused to rule out these reports, telling Marca: "David is amazing, he's brilliant. He's a Man United player and has a contract there. You have to respect that but things change every five minutes."
It has previously been suggested that the Spaniard would set Madrid back around £50m.