Real Madrid are watching Villarreal star Pau Torres at the Euros.
The Los Blancos have begun their search for Sergio Ramos' replacement following the veteran's departure this summer.
Madrid waved goodbye to their long-serving defender this week, with the 35-year-old breaking down in his farewell press conference after being unable to strike an agreement over a contract extension.
Ramos' exit leaves Madrid with Raphael Varane, Eder Militao, Nacho and incoming defender David Alaba as senior centre halves, leaving Carlo Ancelotti slightly short of options in that area.
AS says Torres, who has attracted interest from Manchester United, has been identified as a target following a strong campaign with Villarreal.