Radamel Falcao's temporary move to Chelsea did not cost the English club a loan fee.

According to website Football Leaks, the reigning Premier League champions agreed a free loan with Monaco which had the option to buy permanently at the end of the season.

Falcao has struggled during his loan stint with the Blues but still the West London club has until April 29 to notify the French club if they want to purchase the Colombian or allow him to return to the prinicpality.

Part of the leaked document reads: "It is explicitly agreed that no fee is charged to Chelsea by AS Monaco for the temporary transfer of the player's registration."

Falcao has made just 11 appearances for Chelsea this season, scoring one goal.