According to the Spanish newspaper El Pais, Real Madrid have asked sponsor adidas to double the amount it pays the club annually to 60 million euros.
Real's new president Florentino Perez is seeking the renegotiation of the contract with the German sporting goods manufacturer, which runs until 2012, El Pais said,
acoording sources close to the club say a refusal by adidas, which produces and sells the club's shirts, could push Real to take its business to the company's US rival Nike.
Besides adidas, Real has several other sponsors, including Coca-Cola, Audi, Bwin and Telefonica, which altogether pay them some 130 millions euros a year, around one third of the club's revenues of 400 million.
In the past month, Real has shelled out more than 200 million euros for top stars Cristiano Ronaldo, Kaka, Raul Albiol and Karim Benzema.
"We are the best club in the world," Perez told adidas CEO Herbert Hainer in a telephone conversation seeking a renegotiation of their contract, according to El Pais.