Real Madrid hero Zinedine Zidane has revealed that the club is monitoring Raheem Sterling.

The 20-year old Liverpool forward has been heavily linked with the Spanish giants recently but Zidane, manager of the club's Castilla B team, has confirmed that there is interest in the England international who is at a contract impasse with the Merseyside club.

"We know who Raheem Sterling is, and of course we are monitoring him as a player," Zidane told the Daily Mail.

"There are very few players in the world who can improve the Real Madrid squad, so it is going to make sense we monitor the progress of the best young players in the world.

"We monitored (Gareth) Bale for over a year, the same with Isco and also (Raphael) Varane.

"We monitor many of the best young players in Europe, then if we feel they have something to offer Real Madrid we will contact their club and try and make the next step."