Carlos offers to play for free at Real Madrid

Roberto Carlos is a free agent in December (GETTY IMAGES)

Former defender Roberto Carlos has offered to play for free for Real Madrid when his contract with current club Fenerbache expires.

The 36-year-old ex-Brazil international will be a free agent in December and would jump at the chance to return to the Bernabeu.

Carlos made almost 600 appearances during more than a decade in Madrid.

"It's my third season (in Turkey) but I have decided I will leave in December," he said.

"I would like to return to Brazil and play for a team there.

"I would be willing to play for Madrid for six months from January to June for free. I would like this.

"In Madrid I spent many wonderful years, I've won everything and I consider it my home."

Valencia striker David Villa is hopeful of being fit to face Barcelona when La Liga resumes in two weeks' time.

The Spain striker is a major doubt for Los Che's October 18 meeting with the reigning champions and league leaders after being forced to withdraw from Vicente del Bosque's squad for their remaining World Cup qualifiers against Armenia and Bosnia with a hamstring problem.

"It is a long time. I hope I'm there against Barcelona," said the league's seven-goal leading scorer.

"I have to work every day to make it but I expect to recover."

Meanwhile, Sevilla striker Alvaro Negredo has spoken of the 'happiest day of his life' after being called into the Spain squad for the first time.

Negredo was added to coach Vicente del Bosque squad for Spain's World Cup qualifiers against Armenia and Bosnia after David Villa was ruled out through injury and Daniel Guiza picked up a problem during training.

"This is the happiest day of my life," said the former Real Madrid striker.

"The chance to go with the national team doesn't come around often. It's been a long time coming. I am so happy, and for any player this is the ultimate.

"It's a dream for every footballer, especially me. I worked hard for this moment and hopefully I can make my debut."