Barcelona are tracking Tottenham pair Harry Kane and Christian Eriksen and scouted them against Real Madrid.
The Nou Camp club sent sporting director Robert Fernandez to watch as Mauricio Pochettino's side managed an impressive 1-1 draw at the Santiago Bernabeu on Tuesday night.
Spanish newspaper Mundo Deportivo understand that Fernandez was at the game to assess Kane and Eriksen.
Kane's incredible form in front of goal - he has already scored 15 goals for club and country this season - has seen him receive interest from a number of top sides.