Radio Marca journalist Pablo Garcia Cuervo claims Florentino Perez plans to drag out the negotiations in order to portray Sergio Ramos in a negative light.
If Pedro were signed by Louis van Gaal, he could operate alongside Wayne Rooney and Memphis Depay in the front line of the manager's planned 4-3-3 shape next season.
Christian Benteke is understood to have signed a five-year contract, with Liverpool paying £16 million up front and the remainder of the fee payable over the course of his contract.
Andres Guardado believed the referee made an incorrect decision to award Mexico a penalty kick in the 88th minute after Panama's Roman Torres was judged to have handballed in the area.