Malaga coach Manuel Pellegrini admits English offers have arrived for striker Jose Salamon Rondon.
Arsenal, Chelsea and Liverpool have been linked with the Venezuela international.
Pellegrini told AS: "Rondon has had substantial offers from both Germany and England.
"To stay here, to have time to demonstrate his worth, it has been important to Malaga and hopefully we can have him for longer.
But Pellegrini admitted it was hard to make any player 'untransferable' and said: "It is difficult to know what will happen."