It would be an important coup for Real president Florentino Perez, who has turned the club into the world's richest by income, and has always believed in marketing as a fundamental element to bringing success on the pitch.
The 10-times European Cup winners' current sponsorship deal with Adidas runs until 2020.
News that makes sense
Your trusted source for staying up-to-date with the world around you. Get free daily news updates and analysis, straight to your inbox.
(Reporting by Tim Hanlon in Barcelona, editing by Ed Osmond)
