Cape Town - Manchester United will ask for a player in exchange from Real Madrid should an offer come in for Spanish goalkeeper David De Gea.
The Daily Star reports that Louis van Gaal will attempt to include a star player in any deal for David De Gea.
De Gea is widely tipped to join Los Blancos during the current transfer window but the deal for the United number one looks set to be complicated by Manchester United's demand for a Real Madrid player in exchange.
Cristiano Ronaldo, Gareth Bale, Raphael Varane and Karim Benzema are all reported targets for Manchester United.
De Gea's contract at United expires at the end of the 2015/16 season and Manchester United have turned their attention to signing a star from Real Madrid after being unable to convince De Gea to agree to a new long-term £200 000-a-week contract.