Real Madrid are willing to sell Brazilian playmaker Kaka for £22 million, according to reports.Kaka, who joined Real from AC Milan in a £55 million deal in 2009, struggled to make his mark at the Bernabeu following a series of injury problems and has fallen out of favour with manager Jose Mourinho, who prefers to play Germany international Mezit Ozil.Madrid are now ready to let Kaka, 29, go for a relatively cut-price fee."Kaka has always interested other clubs and Mourinho has decided that he has far better options in midfield so the best thing to do is to move him on," a Madrid source told the Daily Mail."There has been no concrete offer but it is now known that the club would accept an offer in the region of £22 million."Chelsea, PSG and the Brazilian's former club AC Milan have been linked with a January move for the forward.PSG's sporting director Leonardo admitted that he has the money to sign Kaka, while Milan president Silvio Berlusconi said: "There is always a place at the San Siro for a 100% Milanista."