The Red Devils are hoping to rid themselves of Rojo in the summer.
The Argentine has struggled to stay fit and is currently on loan at Estudiantes.
El Eco says United want £9.5 million for the versatile defender.
But Rojo wants to stay in South America, and the source claims no club in Argentina could afford such a fee.
An extension of his loan with Estudiantes is possible, but nothing has been agreed yet.
As recently as a few days ago, the club's boss Leandro Desabato stated Rojo was likely to go back to United when the loan expired.