Manchester United's Radamel Falcao celebrates after scoring a goal against Everton during their English Premier League soccer match at Old Trafford in Manchester, northern England October 5, 2014.
Currently spending his time temporarily at Manchester United, the Colombian predator intriguingly chose to sign with AS Monaco, who was the highest bidder when he was about to leave Atletico Madrid in 2013, despite being linked with Spanish giants Real Madrid.And he insists that it wasn’t about the money.Earnings: $26 million Salary: $23 million Endorsements: $3 million Major Sponsors: Puma, Samsung, Gillette REUTERS/Phil Noble

Manchester United striker Radamel Falcao was furious at rumours spreading that he had to apply cold compress to his knee after every match to prevent an "injury" from worsening.

The Colombian predator was sidelined from January of this year until late July to recover from a medical procedure that repaired a torn cruciate ligament in his knee, and after it was revealed that he had moved to Old Trafford on loan, his fitness was always questioned. He, nevertheless, made his first appearance as a Red Devil nearly just a fortnight after the confirmation of the deal.

However, he has yet to make the impact expected of him and three consecutive omissions from matchdays nine to eleven has only added fuel to the fire concerning a possible recurring problem with his knee.

Falcao vented out his anger on social media, insisting that such report is a just mere "speculation," tending to be disastrous.

One fool speculates. A few others lacking objectivity respond and millions believe lies. It is disastrous what a few fools can do.

— Radamel Falcao (@FALCAO) November 10, 2014

"One fool speculates. A few others lacking objectivity respond and millions believe lies. It is disastrous what a few fools can do," he posted on his official Twitter page.

Meanwhile, United boss Louis van Gaal confirmed that Falcao is indefinitely out due to a calf issue and would need to compete with Robin van Persie for the sole spot upfront, as he is inclined to implement the 4-5-1 on a long-term basis.

"I cannot say when Falcao will be back. It depends on the progress on his injury. It's his calf," said the 63-year-old Dutchman.

"The problem for Falcao is because of balance in the game."

"I have to decide which striker (to use). It's not his fault. With the other system I could play with two strikers, but then the balance wasn't good."

"Since then we have less goals in our favour but also less goals conceded. We have also played against the better teams in the Premier League in that time (Chelsea and Manchester City) on an equal level, more or less."

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