Real Madrid left-back Sergio Reguilon is in talks to join Chelsea, with discussions already at an advanced stage, sources have told ESPN.

The defender, 23, has attracted interest from a number of top European clubs after impressing in La Liga this season on loan at Sevilla.

Chelsea's No. 1 left-back target this year has been Leicester's Ben Chilwell, but negotiations have proved difficult. Manchester United, Tottenham Hotspur and Inter Milan had all made inquiries about Reguilon this summer, but multiple sources have told ESPN that Chelsea are now favourites to land him.

Discussions are ongoing as to whether the deal would be a loan move or a purchase for a fee of around €25 million.

The Real Madrid youth product broke into the first team in the 2018-19 season with Santiago Solari as coach, replacing the veteran Marceloin the starting XI.