The future of Radamel Falcao remains in doubt at Atletico Madrid.

Falcao's father has revealed the interest of Chelsea, Manchester City and Real Madrid in recent days and it's been revealed Atletico were serious about selling him last month.

El Confidencial says Atletico chiefs made the Colombian available for €33 million with a black hole remaining in their financial reports. But no interested club was willing to meet the asking price.

A sale in January cannot be ruled out, with Atletico still needing to find money to balance the books.