Leeds United plan to build their defence around centre-back Diego Llorente following his impressive displays over the past few months, Football Insider reports.
The Spaniard joined the Whites from Real Sociedad for £18 million last summer but played just 81 minutes in the first half of the league season due to multiple groin injuries.
He made his comeback in early January against Newcastle United but lasted for just 10 minutes before picking up a fresh hamstring problem.
He has since overcome his injury troubles and has started the last seven league games for the Yorkshire outfit, where they have been on the winning side on four occasions.