But Perez, when asked about Rodriguez, belligerently insisted that, should United sign Rodriguez, it would be for more than €80m.
The Spain worldwide has been heavily linked with a move to Old Trafford over the past couple of weeks as Manchester United manager Jose Mourinho looks to improve his attacking options. Meanwhile, the chief was also coy over the future of James Rodriguez following recent reports claiming that the Colombian global is also set to move to Old Trafford.
"I think we're not in negotiations with Manchester United, which is not to say that there are people around you who are talking, which is normal", he told esRadio.
"I have read that we have reached an agreement for I don't know for how many millions, but it is not true".
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The long-protracted transfer saga had looked all set to be completed by this time - given Morata and United have agreed on personal terms - but Madrid are still providing a stumbling block.
Meanwhile, reports suggesting Chelsea are keen to hijack United's bid to sign Morata are not concerning Old Trafford officials, who believe they are the only team in the frame to sign Morata.
Perez was full of praise for the 25-year-old, but said the club's interests came first. "It will be no problem for the Spain team, although Spanish football would lose a great player".