Louis van Gaal responded with a tone of anger after a journalist asked him to comment on reports linking Manchester United with Edinson Cavani, Robert Lewandowski and Sergio Ramos.
The Red Devils are, once again, one of the most active clubs in this summer's transfer market and have been tipped to pull off one or two big deals before the window closes.
They have already spent close to £80million on Memphis Depay, Morgan Schneiderlin, Matteo Darmian and Bastian Schweinsteiger but have been tipped to spend much more.
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A move for Real Madrid's Sergio Ramos continues to be big news in the Spanish media while Edinson Cavani has emerged as potential replacement for the recently departed Robin van Persie.
One journalist was brave enough to ask the Dutchman to comment on this speculation and got a the kind of response that has given Van Gaal his draconian reputation.
Upon hearing the question, Van Gaal said: "There is so much in the papers but it is not true."
He then pointed to another journalist and said: "He is writing always rubbish, and then it is true. In the media it is true. No, it is not true."
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But there is much to be said about these reports and it is hard to believe that Manchester United are not interested in any of the aforementioned trio.
For instance, reports linking Ramos with a move from Real Madrid were original born from the suggestion that Ed Woodward had demanded the defender whilst discussing the transfer of David de Gea in the opposite direction.
It is also expected that Angel di Maria will leave Old Trafford for Paris Saint-Germain, where Edinson Cavani currently, and reluctantly, occupies the left-wing role.
Manchester United are in need of a striker and a swap deal involving the Uruguayan and the Argentinian would seemingly suit all parties.
The journalist who asked the question may have been feeling like a naughty child after the press conference but Van Gaal had certainly lulled him into thinking he was ready to talk.
Van Gaal had already admitted that he was ready to sell Victor Valdes and had also detailed exactly when he told Van Persie that he was not needed anymore.
However, it seems that when it comes to buying players, rather than selling them, Van Gaal's willingness to share runs out.
Is Louis van Gaal right to dismiss these rumours or do you think he's hiding something up his trousers? Sorry, sleeve. Definitely sleeve.