In an article headlined “Bale's secret slips out”, Marca claim Bale underwent an MRI scan on September 2 – the day he was presented at the Bernabeu – detected a slipped disc and “bulge” in his back, which may require surgery in the future.
"The information published, claiming that the player has a slipped disc on the vertebrae is completely false," Madrid said in a statement.
Bale has started just once for Los Blancos since arriving from Premier League side Tottenham Hotspur for a record breaking fee.
The Welshman scored on his home debut but has played only twice since, and has missed four matches due to muscular problems.
Bale's agent, Jonathan Barnett, told the TV station La Sexta: "The whole story is complete rubbish, irresponsible and a disgrace. I was contacted by a reporter from Marca: I told them that it was complete rubbish and yet they still printed it.
“Whatever they say is a lie. It is stupid and irresponsible. He passed the medical and he is 100 percent fit. There is nothing wrong with him. He is the most expensive signing in history; if there had been any problem they would have stopped the signing.
"He is back training normally and he'll be available to Mr Ancelotti after the [international] break. He has [had] a slight tear in his thigh. He is angry that a newspaper can write such rubbish."
Real's statement in full reads:
In response to the information that the newspaper Marca has published today regarding the player Gareth Bale, Real Madrid would like to state the following:
- The information published, claiming that the player has a slipped disc on the L5-S1 vertebrae and a bulge on two others, is completely false.
- The player does not have a slipped disc, as the club's medical services stated clearly to the newspaper before the information was published. Surprisingly, the version the doctors offered this media outlet on Thursday 10 October has been omitted.
- The player Gareth Bale has a small chronic disc bulge, which is extremely common among football players and by no means prevents him from carrying out his professional activity normally.